Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2.
A275402
Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2.
Terms
- a(0) =3a(1) =16a(2) =84a(3) =444a(4) =2344a(5) =12376a(6) =65344a(7) =345008a(8) =1821600a(9) =9617824a(10) =50780928a(11) =268117056a(12) =1415625088a(13) =7474326400a(14) =39463524352a(15) =208362556160
External references
- oeis: A275402