89428
domain: N
Appears in sequences
- Number of ways to place 5 nonattacking queens on a 5 X n board.at n=15A061991
- Number of nX3 0..3 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=18A201446
- Numbers k such that w(k), w(k+1), and w(k+2) are all odd, where w is A336957.at n=32A337644
- G.f. A(x) satisfies: 1 - x = Sum_{n>=0} (x^(2*n) + (-1)^n*A(x))^n.at n=15A352818
- a(n) is the smallest n-gonal number whose sum of digits is n.at n=28A359003