A181616 - cp's OEIS frontend

A181616 a(1)=5; thereafter a(2n) = nextprime(a(2n-1)^2), a(2n+1) = nextprime(floor(2*a(2n)/(a(2n-1) + 1))) where nextprime(.) is A007918(.).

n	a(n)
1	5
2	29
3	11
4	127
5	23
6	541
7	47
8	2213
9	97
10	9413
11	193
12	37253
13	389
14	151337
15	787
16	619373
17	1579
18	2493259
19	3163
20	10004573
21	6329
22	40056253
23	12659
24	160250297
25	25321
26	641153069
27	50647
28	2565118639
29	101293
30	10260271859
31	202591
32	41043113401
33	405199

[5, 29, 11, 127, 23, 541, 47, 2213, 97, 9413, 193, 37253, 389, 151337, 787, 619373, 1579, 2493259, 3163, 10004573, 6329, 40056253, 12659, 160250297, 25321, 641153069, 50647, 2565118639, 101293, 10260271859, 202591, 41043113401, 405199]

cp's OEIS Frontend

A181616 a(1)=5; thereafter a(2n) = nextprime(a(2n-1)^2), a(2n+1) = nextprime(floor(2*a(2n)/(a(2n-1) + 1))) where nextprime(.) is A007918(.).

Table of values

List of values