Let b(n) = A112455(n). Then b(n)/n is an integer iff n is prime (at least for the first few values, as for the Perrin sequence). This sequence is the values of b(p)/p, where p is the n th prime.

A112458

Let b(n) = A112455(n). Then b(n)/n is an integer iff n is prime (at least for the first few values, as for the Perrin sequence). This sequence is the values of b(p)/p, where p is the n th prime.

Terms

    a(0) =1a(1) =1a(2) =-1a(3) =1a(4) =0a(5) =1a(6) =3a(7) =-3a(8) =2a(9) =-16a(10) =13a(11) =58a(12) =93a(13) =-48a(14) =257a(15) =-508a(16) =-2439a(17) =3751a(18) =3120a(19) =21824a(20) =-28485a(21) =-49886a(22) =-184653a(23) =-158325a(24) =-1238859a(25) =2621639a(26) =-6281879a(27) =-10666638a(28) =5587636a(29) =-32300736

External references