400000000000
domain: N
Appears in sequences
- Expansion of (1-6*x)/(1-10*x).at n=12A093141
- Erroneous version of A052218.at n=22A094628
- Expansion of (1+4x-6x^2-36x^3)/(1-19x^2+90x^4).at n=23A097112
- Numbers k such that the k-th triangular number contains only digits {0,2,8}.at n=21A119056
- Numbers k such that k and k^2 use only the digits 0, 1, 4 and 6.at n=24A136859