37576

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, 1, 0), (0, 1, 0), (1, 0, 0), (1, 1, -1)}.at n=9A149941
• Number of (n+2) X 5 0..3 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=6A186875
• Number of (n+2)X9 0..3 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.at n=2A186879
• Number of (w,x,y,z) with all terms in {1,...,n} and 2|w-x|=|x-y|+|y-z|.at n=38A212575
• Euler transform of Lucas numbers.at n=14A261031
• Pseudoprimes to base 9 that are not squarefree.at n=32A306448
• a(n) = Sum_{k=0..n} r_4(k^2 + 1), where r_4(k) is the number of ways of writing k as a sum of 4 squares (A000118).at n=21A333174
• a(n) is the smallest positive integer k such that the base-n representation of 2^k has a pandigital ending of length n, or 0 if no such k exists.at n=13A348209
• a(n) = number of subsets S of {1,2,...,n} having more than 2 elements such that (sum of least three elements of S) > max(S).at n=18A357289