A142719 - cp's OEIS frontend

A142719 a(n) = if n < 41 then n^2 - n + 41, otherwise n^2 - 81*n + 1681.

n	a(n)
1	41
2	41
3	43
4	47
5	53
6	61
7	71
8	83
9	97
10	113
11	131
12	151
13	173
14	197
15	223
16	251
17	281
18	313
19	347
20	383
21	421
22	461
23	503
24	547
25	593
26	641
27	691
28	743
29	797
30	853
31	911
32	971
33	1033
34	1097
35	1163
36	1231
37	1301
38	1373
39	1447
40	1523
41	1601
42	41
43	43
44	47
45	53
46	61
47	71
48	83
49	97
50	113
51	131
52	151
53	173
54	197

[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, 47, 53, 61, 71, 83, 97, 113, 131, 151, 173, 197]

cp's OEIS Frontend

A142719 a(n) = if n < 41 then n^2 - n + 41, otherwise n^2 - 81*n + 1681.

Table of values

List of values