47241
domain: N
Appears in sequences
- a(0) = 1, a(1) = 9; for n >= 2 a(n) is the number of degree-n monic reducible polynomials over GF(9), i.e., a(n) = 9^n - A027381(n).at n=5A058824
- a(n) = (9/5)*(1+4*(-9)^(n-1)).at n=5A165749
- Number of permutations of 0..floor((n*6-1)/2) on even squares of an n X 6 array such that each row, column, diagonal and (downwards) antidiagonal of even squares is increasing.at n=8A215784
- Number of permutations of 0..floor((n*6-2)/2) on odd squares of an n X 6 array such that each row, column, diagonal and (downwards) antidiagonal of odd squares is increasing.at n=8A215866
- Partial sums of A006010.at n=17A335648