54363

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (0, 0, -1), (0, 0, 1), (1, 1, -1)}.at n=10A148729
• Rainbow Squares: a(n) = number of ways to pair the integers 1 to 2n so that the sum of each pair is a square.at n=25A252897
• Integers k such that (2^k + 1) + (3^k + 1) + (5^k + 1) is prime.at n=20A268064
• Number of compositions of n such that every restriction to a circular subinterval has a different sum.at n=46A325679