139392

Appears in sequences

• Number of Young tableaux of height <= 8.at n=12A007580
• Number of walks within N^2 (the first quadrant of Z^2) starting and ending at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 0), (0, 1), (1, -1), (1, 0)}.at n=12A151357
• Number of ways to place 2 nonattacking queens on an n X n toroidal board.at n=23A172517
• Numbers n such that both ror(n) and rol(n) are squares, where ror(x)=A038572(x) is x rotated one binary place to the right, rol(x)=A006257(x) is x rotated one binary place to the left.at n=15A274524
• Numbers n such that 2^n == 1 (mod sigma(n)).at n=33A278836
• a(n) = Product_{i=1..n, j=1..n} (i^5 + j^5).at n=2A324438