74326
domain: N
Appears in sequences
- a(n) = 3*a(n-1) + 5*a(n-2), with a(0)=0, a(1)=1.at n=9A015523
- Number of ways to place 3 nonattacking wazirs on an n X n board.at n=8A172226
- Numbers n such that the decimal expansions of both n and n^2 have 2 as smallest digit and 7 as largest digit.at n=34A257123
- Number of 10-element subsets of [n] whose sum is a triangular number.at n=13A320856