210010

Appears in sequences

• Numbers k such that the k-th triangular number contains only digits {0,2,5}.at n=9A119052
• Modified Sisyphus function of order 5: a(n) is the concatenation of the number of digits in n with the number of digits of n congruent to k modulo 5 for each k from 0 to 4 in turn.at n=30A375208
• Modified Sisyphus function of order 5: a(n) is the concatenation of the number of digits in n with the number of digits of n congruent to k modulo 5 for each k from 0 to 4 in turn.at n=35A375208