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idoneal n.  and  plaindrome

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(max 15 digits)

First numbers that belong to both sets:

1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 15, 16, 18, 22, 24, 25, 28, 33, 37, 45, 48, 57, 58, 78, 88, 112, 133, 168, 177, 345, 357.