88681187619
domain: N
Appears in sequences
- Half the number of (n+1)X(n+1) symmetric 0..2 arrays with no 2X2 subblock summing to 4.at n=5A213691
- 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=26A213697
- Half the number of 7X7 0..n symmetric arrays with no 2X2 subblock summing to 2n.at n=1A213702