A265408 - cp's OEIS frontend

A265408 Prime factorization representation of Spironacci polynomials: a(0) = 1, a(1) = 2, and for n > 1, a(n) = A003961(a(n-1)) * a(A265409(n)).

n	a(n)
0	1
1	2
2	3
3	5
4	7
5	11
6	13
7	17
8	38
9	138
10	870
11	9765
12	213675
13	4309305
14	201226025
15	9679967297
16	810726926009
17	40855897091009
18	4259653632223561
19	380804291082185737
20	44319264099050115071
21	4644246052673250585913

[1, 2, 3, 5, 7, 11, 13, 17, 38, 138, 870, 9765, 213675, 4309305, 201226025, 9679967297, 810726926009, 40855897091009, 4259653632223561, 380804291082185737, 44319264099050115071, 4644246052673250585913]

cp's OEIS Frontend

A265408 Prime factorization representation of Spironacci polynomials: a(0) = 1, a(1) = 2, and for n > 1, a(n) = A003961(a(n-1)) * a(A265409(n)).

Table of values

List of values