95887

Appears in sequences

• Number of binary polynomials of degree n irreducible over the integers.at n=17A087482
• Number of imprimitive (periodic) bracelets (or necklaces) with n red or blue beads such that the beads switch colors when bracelet is turned over.at n=43A115121
• Numbers which are both lucky and pentagonal.at n=20A128511
• Smallest fixed point summed over all non-derangement permutations of {1,2,...,n}.at n=8A155521
• Triangular array read by rows. T(n,k) is the number of n-permutations that have at least k fixed points with n >= 1 and 1 <= k <= n.at n=37A208956
• a(n) = n*(n + 1)*(3*n^2 + 3*n - 2)/8.at n=22A236770
• Expansion of Product_{k>=0} 1/(1-x^(4*k+3))^(4*k+3).at n=44A285131
• Expansion of Product_{k>=0} 1/(1 + x^(4*k+3))^(4*k+3).at n=44A285311
• Irregular triangle read by rows: T(n,k) is the number of n-permutations whose second-shortest cycle has length exactly k; n >= 0, 0 <= k <= max(0,n-1).at n=38A349980