Number of length n+3 0..6 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.

A248535

Number of length n+3 0..6 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.

Terms

    a(0) =331a(1) =427a(2) =555a(3) =715a(4) =907a(5) =1219a(6) =1635a(7) =2167a(8) =2827a(9) =3895a(10) =5307a(11) =7111a(12) =9355a(13) =13051a(14) =17931a(15) =24151a(16) =31867a(17) =44815a(18) =61923a(19) =83683a(20) =110587a(21) =156583a(22) =217419a(23) =294643a(24) =389803a(25) =555535a(26) =774963a(27) =1052959a(28) =1394395a(29) =1999867

External references