Sequential 1's with 9
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1 x 9 + 2 = 11
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12 x 9 + 3 = 111
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123 x 9 + 4 = 1111
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1234 x 9 + 5 = 11111
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12345 x 9 + 6 = 111111
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123456 x 9 + 7 = 1111111
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1234567 x 9 + 8 = 11111111
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12345678 x 9 + 9 = 111111111
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123456789 x 9 + 10 = 1111111111
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Sequential 8's with 9
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9 x 9 + 7 = 88
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98 x 9 + 6 = 888
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987 x 9 + 5 = 8888
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9876 x 9 + 4 = 88888
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98765 x 9 + 3 = 888888
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987654 x 9 + 2 = 8888888
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9876543 x 9 + 1 = 88888888
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98765432 x 9 + 0 = 888888888
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Numeric Palindrome with 1's
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1 x 1 = 1
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11 x 11 = 121
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111 x 111 = 12321
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1111 x 1111 = 1234321
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11111 x 11111 = 123454321
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111111 x 111111 = 12345654321
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1111111 x 1111111 = 1234567654321
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11111111 x 11111111 = 123456787654321
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111111111 x 111111111 = 12345678987654321
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Without 8
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12345679 x 9 = 111111111
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12345679 x 18 = 222222222
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12345679 x 27 = 333333333
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12345679 x 36 = 444444444
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12345679 x 45 = 555555555
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12345679 x 54 = 666666666
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12345679 x 63 = 777777777
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12345679 x 72 = 888888888
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12345679 x 81 = 999999999
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