33145

Appears in sequences

• Dirichlet convolution of b_n=2^(n-1) with Primes (with 1).at n=15A034736
• Reversion of y - y^2 + y^3 - y^4 - y^5.at n=13A063025
• The number of symmetric positive definite 2 X 2 matrices whose entries are integers of absolute value at most n.at n=32A219693
• Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of (undirected) cycles on the n X k king graph.at n=11A339098
• Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of (undirected) cycles on the n X k king graph.at n=13A339098
• Number of (undirected) cycles on the n X 3 king graph.at n=3A339197
• Number of (undirected) cycles on the n X 5 king graph.at n=1A339199
• Number of down-steps (1,-1) among all n-length nondecreasing Dyck paths with air pockets.at n=15A358734