61508

Appears in sequences

• a(n) is the number of n-cell polyiamonds (triangular polyominoes) with perimeter n+2.at n=14A131481
• Number of nX4 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=7A281135
• Numbers k such that prime(k+1)^prime(k+3) == prime(k) mod prime(k+2).at n=33A335571