a(n) = c(prime(n))/prime(n), where c = Perrin sequence A001608 (starting 0,2,3,...) and prime(n) is the n-th prime.

A014981

a(n) = c(prime(n))/prime(n), where c = Perrin sequence A001608 (starting 0,2,3,...) and prime(n) is the n-th prime.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =3a(6) =7a(7) =11a(8) =28a(9) =120a(10) =197a(11) =892a(12) =2479a(13) =4148a(14) =11687a(15) =56010a(16) =271913a(17) =461529a(18) =2270882a(19) =6599404a(20) =11263855a(21) =56250108a(22) =164879269a(23) =830987861a(24) =7231032935a(25) =21386730355a(26) =36802336319a(27) =109099442316a(28) =187943217386

External references