5676765
domain: N
Appears in sequences
- Palindromic triangular numbers.at n=20A003098
- Palindromic binomial coefficients C(n,k) for k >= 2.at n=29A051641
- Palindromic hexagonal numbers.at n=13A054969
- Triangular numbers whose digit reversal is also a triangular number.at n=38A061455
- Triangular numbers whose reverse is also triangular.at n=26A066569
- Triangular numbers in which neighboring digits differ at most by 1. Allowed neighbors of 9 are 0, 8 and 9.at n=28A068149
- Triangular numbers composed of digits {5,6,7}.at n=7A119218