193946752094
domain: N
Appears in sequences
- Half the number of (n+1) X (n+1) symmetric 0..3 arrays with no 2 X 2 subblock summing to 6.at n=4A213692
- T(n,k)=Half the number of (n+1)X(n+1) symmetric 0..k arrays with no 2X2 subblock summing to 2k.at n=25A213697
- Half the number of 6X6 0..n symmetric arrays with no 2X2 subblock summing to 2n.at n=2A213701