191544

Appears in sequences

• Number of permutations of (1,2,3,...,n) where each of the (n-1) adjacent pairs of elements sums to a prime.at n=14A103839
• Number of ways to select 2 disjoint point triples from an n X n X n triangular point grid, each point triple forming an 2 X 2 X 2 triangle.at n=24A289223