Number of nX3 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
A281535
Number of nX3 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =4a(2) =290a(3) =2919a(4) =14561a(5) =63840a(6) =245037a(7) =871492a(8) =2953605a(9) =9666482a(10) =30769771a(11) =95835530a(12) =293254847a(13) =884195974a(14) =2632901317a(15) =7756881944a(16) =22642414159a(17) =65560614848a(18) =188478504627a(19) =538421898582
External references
- oeis: A281535