A352955 - cp's OEIS frontend

A352955 a(n+2) is the smallest odd prime such that a(n) is the smallest odd prime divisor of a(n+1)+a(n+2), starting with a(1) = 11 and a(2) = 19.

n	a(n)
1	11
2	19
3	3
4	73
5	5
6	1163
7	17
8	2309
9	3
10	147773
11	7
12	2364361
13	43
14	75659509
15	109
16	605275963
17	601
18	732718084457515921
19	2767
20	1500606636968992603441
21	145687
22	192077649532031053094761
23	10273
24	103120902879077884687304760481759
25	5036623

[11, 19, 3, 73, 5, 1163, 17, 2309, 3, 147773, 7, 2364361, 43, 75659509, 109, 605275963, 601, 732718084457515921, 2767, 1500606636968992603441, 145687, 192077649532031053094761, 10273, 103120902879077884687304760481759, 5036623]

cp's OEIS Frontend

A352955 a(n+2) is the smallest odd prime such that a(n) is the smallest odd prime divisor of a(n+1)+a(n+2), starting with a(1) = 11 and a(2) = 19.

Table of values

List of values