41260

Appears in sequences

• Number of permutations of some {1,2,...,k} in which the sum of the positions of the right-to-left minima is n.at n=9A143948
• Second crank moment minus second rank moment: M_2(n) - N_2(n) = 2*spt(n).at n=28A211982
• Indices where A092243 strictly changes sign.at n=3A269737
• Numbers k such that k * 15^k - 1 is prime.at n=7A299378
• Number of integer solutions (a_1, a_2, ... , a_8) to the equation a_1^2 + 2*a_2^2 + ... + 8*a_8^2 = 3*n.at n=26A320243
• Number of partitions of n that contain {1,2} minus number of partitions of n that contain neither 1 nor 2.at n=44A324368
• Number of regions among all distinct circles that can be constructed from the 4 vertices and the equally spaced 4*n points placed on the sides of a square when every pair of the 4 + 4*n points are connected by a circle and where the points lie at the ends of the circle's diameter.at n=6A373107
• G.f.: Sum_{k>=0} x^(k^2) * Product_{j=1..k} 1/(1 - x^j)^4.at n=20A376712