31366

Appears in sequences

• Start of record gap in even semiprimes (A100484).at n=11A114058
• Expansion of 1/(x^k*(1-x-3*x^(k+1))) for k=8.at n=33A143459
• Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 2 ones in any 4 X 4 X 4 subtriangle.at n=14A153914
• Composite numbers k such that phi(x) = psi(k)*phi(k) has no solution.at n=31A292714
• Squares where knight moving to a lowest unvisited square on a spirally numbered board will have no available moves.at n=22A323714