323680

Appears in sequences

• Stirling numbers of first kind, s(n+3, n), negated.at n=13A001303
• Theta series of 15-dimensional unimodular lattice A15+.at n=6A004536
• Second crank moment minus second rank moment: M_2(n) - N_2(n) = 2*spt(n).at n=38A211982
• Triangle read by rows: T(n,k) is the number of endofunctions on [n] whose third-smallest component has size exactly k; n >= 0, 0 <= k <= max(0,n-2).at n=26A350081