Number of (n+1)X(3+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise.
A236280
Number of (n+1)X(3+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise.
Terms
- a(0) =2304a(1) =87450a(2) =4297035a(3) =134940646a(4) =4211459815a(5) =95929739101
External references
- oeis: A236280