53808589
domain: N
Appears in sequences
- Half the number of (n+2) X 3 binary arrays with each 3 X 3 subblock having a sum in 2..7.at n=6A186788
- Half the number of (n+2)X9 binary arrays with each 3X3 subblock having a sum in 2..7.at n=0A186794
- T(n,k)=Half the number of (n+2)X(k+2) binary arrays with each 3X3 subblock having a sum in 2..7.at n=21A186796