Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302430
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =21a(2) =51a(3) =148a(4) =372a(5) =1359a(6) =4223a(7) =12765a(8) =36991a(9) =120577a(10) =379049a(11) =1163511a(12) =3513789a(13) =11057011a(14) =34615371a(15) =107067003a(16) =328256519a(17) =1021668031a(18) =3184852651a(19) =9877177123a(20) =30474354613a(21) =94542321045a(22) =293938006889a(23) =912146326937
External references
- oeis: A302430