22124

Appears in sequences

• Expansion of e.g.f.: sin(log(1+sin(x))).at n=10A009450
• Growth series for Heisenberg group.at n=24A063810
• Number of idempotent 3X3 0..n matrices.at n=40A222822
• Number of n X 3 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 2 and every value within 2 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.at n=26A253218
• Coefficients of mock modular form H_1^(5) (divided by 2).at n=21A256054
• a(n) = (3^(n+1) - 2n^2 + 4n + 5) / 8.at n=10A262592
• Smallest k such that A285481(k) >= n, i.e., lowest d where the smallest integer radius needed for a d-dimensional ball to have a volume >= 1 is at least n.at n=36A285482
• Number of cyclic subgroups of the group GL(2, Z(n)), counting conjugates as distinct.at n=20A316560
• Number of integer partitions of n where some part is the difference of two consecutive parts.at n=38A364467
• Number of connected cubic identity graphs on 2n vertices.at n=8A380935