Number of nX4 0..2 arrays with no element equal to more than one of its king-move neighbors and with new values introduced in order 0 sequentially upwards.
A280855
Number of nX4 0..2 arrays with no element equal to more than one of its king-move neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =11a(1) =110a(2) =96a(3) =124a(4) =216a(5) =462a(6) =1005a(7) =2010a(8) =3907a(9) =7756a(10) =15749a(11) =31804a(12) =63463a(13) =126758a(14) =254453a(15) =511180a(16) =1024877a(17) =2052836a(18) =4115191a(19) =8254198a(20) =16552251a(21) =33182160a(22) =66522097a(23) =133381078a(24) =267442273a(25) =536212952a(26) =1075064777a(27) =2155474072a(28) =4321733703
External references
- oeis: A280855