a(n) = 3*a(n-1) + 5*a(n-2) + a(n-3), with a(0) = a(1) = 1 and a(2) = 7, a linear recurrence which is a trisection of A005252.
A294262
a(n) = 3*a(n-1) + 5*a(n-2) + a(n-3), with a(0) = a(1) = 1 and a(2) = 7, a linear recurrence which is a trisection of A005252.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =27a(4) =117a(5) =493a(6) =2091a(7) =8855a(8) =37513a(9) =158905a(10) =673135a(11) =2851443a(12) =12078909a(13) =51167077a(14) =216747219a(15) =918155951a(16) =3889371025a(17) =16475640049a(18) =69791931223a(19) =295643364939
External references
- oeis: A294262