5005000
domain: N
Appears in sequences
- a(n) = A069537(n)/2.at n=25A088404
- Numbers k such that k and k^2 use only the digits 0, 2 and 5.at n=23A136910
- Numbers k such that k and k^2 use only the digits 0, 2, 5 and 7.at n=31A136915
- Numbers k such that k and k^2 use only the digits 0, 2, 5 and 8.at n=34A136918
- a(n) = n^4*(n^3 + 1)/2.at n=10A168194
- Larger of pairs (m, n), such that the difference of their squares is a cube and the difference of their cubes is a square.at n=23A261328