a(n) = sigma(n)*Lucas(n) where Lucas(n) = A000204(n) and sigma(n) = A000203(n) is the sum of divisors of n.

A225528

a(n) = sigma(n)*Lucas(n) where Lucas(n) = A000204(n) and sigma(n) = A000203(n) is the sum of divisors of n.

Terms

    a(0) =1a(1) =9a(2) =16a(3) =49a(4) =66a(5) =216a(6) =232a(7) =705a(8) =988a(9) =2214a(10) =2388a(11) =9016a(12) =7294a(13) =20232a(14) =32736a(15) =68417a(16) =64278a(17) =225342a(18) =186980a(19) =635334a(20) =783232a(21) =1425708a(22) =1537896a(23) =6220920a(24) =5200591a(25) =11400606a(26) =17568160a(27) =39796232a(28) =34495530a(29) =133955856

External references