Respuesta :

Here is the next numbers in the sequence:

1, 121, 12321, 1234321, 123454321, 12345654321, 123456764321, 123456787654321, 12345678987654321, etc.

Answer:

1, 121, 12321, 1234321, 123454321, 12345654321, 123456764321, 123456787654321, 12345678987654321,

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