75148

Appears in sequences

• Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having a sum of one or less, with rows and columns of the latter in lexicographically nondecreasing order.at n=36A227161
• Number of scalene triangles, distinct up to congruence, on a centered hexagonal grid of size n.at n=16A241236