Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,2 for x=0,1,2,3,4.
A198009
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,2 for x=0,1,2,3,4.
Terms
- a(0) =3a(1) =31a(2) =182a(3) =1165a(4) =7513a(5) =46044a(6) =299335a(7) =1949525a(8) =12525114a(9) =80785537a(10) =519974271a(11) =3347219266a(12) =21564067183a(13) =138872373953a(14) =894483382442
External references
- oeis: A198009