296399

Appears in sequences

• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 0100-1100-0111-0001 pattern in any orientation.at n=16A147267
• Number of (w,x,y,z) with all terms in {0,...,n} and max{w,x,y,z}>=2*min{w,x,y,z}.at n=23A212741