a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = (primes).

A024867

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = (primes).

Terms

    a(0) =3a(1) =5a(2) =17a(3) =25a(4) =56a(5) =76a(6) =136a(7) =164a(8) =265a(9) =319a(10) =475a(11) =553a(12) =776a(13) =894a(14) =1198a(15) =1354a(16) =1755a(17) =1933a(18) =2443a(19) =2685a(20) =3316a(21) =3586a(22) =4352a(23) =4682a(24) =5605a(25) =6029a(26) =7119a(27) =7613a(28) =8878a(29) =9422

External references