A065383 - cp's OEIS frontend

A065383 a(n) = smallest prime >= n*(n + 1)/2.

n	a(n)
0	2
1	2
2	3
3	7
4	11
5	17
6	23
7	29
8	37
9	47
10	59
11	67
12	79
13	97
14	107
15	127
16	137
17	157
18	173
19	191
20	211
21	233
22	257
23	277
24	307
25	331
26	353
27	379
28	409
29	439
30	467
31	499
32	541
33	563
34	599
35	631
36	673
37	709
38	743
39	787
40	821
41	863
42	907
43	947
44	991
45	1039
46	1087
47	1129
48	1181
49	1229
50	1277
51	1327
52	1381
53	1433

[2, 2, 3, 7, 11, 17, 23, 29, 37, 47, 59, 67, 79, 97, 107, 127, 137, 157, 173, 191, 211, 233, 257, 277, 307, 331, 353, 379, 409, 439, 467, 499, 541, 563, 599, 631, 673, 709, 743, 787, 821, 863, 907, 947, 991, 1039, 1087, 1129, 1181, 1229, 1277, 1327, 1381, 1433]

cp's OEIS Frontend

A065383 a(n) = smallest prime >= n*(n + 1)/2.

Table of values

List of values