A155884 - cp's OEIS frontend

A155884 a(n) = n^2 - n + 41 if this is a prime, a(n) = a(n-40) otherwise.

n	a(n)
0	41
1	41
2	43
3	47
4	53
5	61
6	71
7	83
8	97
9	113
10	131
11	151
12	173
13	197
14	223
15	251
16	281
17	313
18	347
19	383
20	421
21	461
22	503
23	547
24	593
25	641
26	691
27	743
28	797
29	853
30	911
31	971
32	1033
33	1097
34	1163
35	1231
36	1301
37	1373
38	1447
39	1523
40	1601
41	41
42	43
43	1847
44	1933
45	61
46	2111
47	2203
48	2297
49	2393
50	131

[41, 41, 43, 47, 53, 61, 71, 83, 97, 113, 131, 151, 173, 197, 223, 251, 281, 313, 347, 383, 421, 461, 503, 547, 593, 641, 691, 743, 797, 853, 911, 971, 1033, 1097, 1163, 1231, 1301, 1373, 1447, 1523, 1601, 41, 43, 1847, 1933, 61, 2111, 2203, 2297, 2393, 131]

cp's OEIS Frontend

A155884 a(n) = n^2 - n + 41 if this is a prime, a(n) = a(n-40) otherwise.

Table of values

List of values