78276

Appears in sequences

• Sums of 4 distinct powers of 5.at n=37A038476
• Triangle interpolating the swinging factorial (A056040) restricted to odd indices with its binomial transform. Same as interpolating the beta numbers 1/beta(n,n) (A002457) with (A163869). Triangle read by rows, for n >= 0, k >= 0.at n=33A163842
• Number of quadrilaterals in a triangular matchstick arrangement of side n.at n=22A204185
• Number T(n,k) of reduced decompositions for all permutations of [n] with exactly k inversions; triangle T(n,k), n>=0, 0<=k<=n*(n-1)/2, read by rows.at n=37A289778