5050000
domain: N
Appears in sequences
- a(n) = A069537(n)/2.at n=26A088404
- Numbers k such that k and k^2 use only the digits 0, 2 and 5.at n=25A136910
- Numbers k such that k and k^2 use only the digits 0, 2, 5 and 7.at n=36A136915
- Numbers k such that k and k^2 use only the digits 0, 2, 5 and 8.at n=37A136918
- a(n) = n^5*(n^2 + 1)/2.at n=10A168364