a(n) = 1*t(n) + 2*t(n-1) + ...+ k*t(n+1-k), where k=floor((n+1)/2) and t is A001950 (upper Wythoff sequence).

A023867

a(n) = 1*t(n) + 2*t(n-1) + ...+ k*t(n+1-k), where k=floor((n+1)/2) and t is A001950 (upper Wythoff sequence).

Terms

    a(0) =2a(1) =5a(2) =17a(3) =24a(4) =54a(5) =71a(6) =127a(7) =153a(8) =242a(9) =279a(10) =409a(11) =465a(12) =645a(13) =717a(14) =954a(15) =1052a(16) =1354a(17) =1473a(18) =1848a(19) =1989a(20) =2444a(21) =2620a(22) =3164a(23) =3367a(24) =4007a(25) =4239a(26) =4983a(27) =5260a(28) =6116a(29) =6426

External references