Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.
A241430
Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.
Terms
- a(0) =4a(1) =10a(2) =22a(3) =97a(4) =213a(5) =381a(6) =1005a(7) =1900a(8) =4137a(9) =10518a(10) =21092a(11) =47994a(12) =111034a(13) =227786a(14) =526558a(15) =1173266a(16) =2506934a(17) =5760387a(18) =12607288a(19) =27523425a(20) =62352333a(21) =135931174a(22) =300820619a(23) =674058895a(24) =1474383381a(25) =3279987103a(26) =7290574867a(27) =16018404203
External references
- oeis: A241430