90896

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (-1, 1, 0), (0, -1, 1), (1, 0, 1), (1, 1, -1)}.at n=9A149475
• a(n) = (9*n+2)*(9*n+7).at n=33A177072
• 2^(2p-2) modulo p^3 for p=odd primes.at n=14A216160
• (-1)^((p-1)/2)*Binomial(p-1,(p-1)/2) mod p^3 where p is the n-th prime.at n=14A224807
• Numbers k such that k*A001414(k)+1 is the square of a prime.at n=37A343141
• Array read by antidiagonals: T(n,k) is the number of noncrossing k-gonal cacti with n polygons up to rotation.at n=62A361236
• Number of nonequivalent noncrossing 4-gonal cacti with n polygons up to rotation.at n=7A361238