Sum of terms in level n of TRIP - Stern sequence associated with permutation triple (e,13,23).

A278615

Sum of terms in level n of TRIP - Stern sequence associated with permutation triple (e,13,23).

Terms

    a(0) =3a(1) =8a(2) =21a(3) =56a(4) =148a(5) =394a(6) =1044a(7) =2776a(8) =7364a(9) =19568a(10) =51936a(11) =137960a(12) =366256a(13) =972736a(14) =2582736a(15) =6858880a(16) =18212288a(17) =48363680a(18) =128423232a(19) =341027456a(20) =905565760a(21) =2404701952a(22) =6385502208a(23) =16956417664a(24) =45026632448a(25) =119565922304a(26) =317499868416a(27) =843103631360

External references