76476
domain: N
Appears in sequences
- Cupolar numbers: a(n) = (n+1)*(5*n^2 + 7*n + 3)/3.at n=35A096000
- Numbers k such that k and k^2 use only the digits 4, 5, 6, 7 and 8.at n=20A137140
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (1, -1, 1), (1, 0, 1), (1, 1, -1)}.at n=10A148861
- a(1)=1, then a(n) = smallest number whose square is larger than 2*(a(n-1))^2.at n=30A175539