Number of length n+2 0..4 arrays with no pair in any consecutive three terms totalling exactly 4.
A245991
Number of length n+2 0..4 arrays with no pair in any consecutive three terms totalling exactly 4.
Terms
- a(0) =64a(1) =208a(2) =676a(3) =2196a(4) =7132a(5) =23168a(6) =75260a(7) =244464a(8) =794096a(9) =2579500a(10) =8379052a(11) =27217860a(12) =88412560a(13) =287192948a(14) =932896352a(15) =3030352272a(16) =9843575108a(17) =31975148500a(18) =103865731612a(19) =337389844512
External references
- oeis: A245991