a(1) = 1; a(2*n) = prime(n)*a(n), a(2*n+1) = prime(n)*a(n) + a(n+1), where prime(n) is the n-th prime.
A176716
a(1) = 1; a(2*n) = prime(n)*a(n), a(2*n+1) = prime(n)*a(n) + a(n+1), where prime(n) is the n-th prime.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =6a(4) =10a(5) =20a(6) =26a(7) =42a(8) =52a(9) =110a(10) =130a(11) =260a(12) =286a(13) =442a(14) =484a(15) =798a(16) =850a(17) =1196a(18) =1306a(19) =3190a(20) =3320a(21) =4030a(22) =4290a(23) =9620a(24) =9906a(25) =11726a(26) =12168a(27) =19006a(28) =19490a(29) =22748
External references
- oeis: A176716