31288

Appears in sequences

• a(n) = Sum_{i=0..n} 3^i*i!.at n=5A112370
• Number of binary strings of length n with equal numbers of 00100 and 11011 substrings.at n=16A164243
• Number of twice-partitions of type (Q,P,Q) and weight n.at n=32A279790
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=14A318540
• Numbers k which are the product of a cube greater than 1 and a prime, and where k-1 and k-2 are semiprimes.at n=43A350284