A055472 - cp's OEIS frontend

A055472 Primes of the form k(k+1)/2+2 (i.e., two more than a triangular number).

n	a(n)
1	2
2	3
3	5
4	17
5	23
6	47
7	107
8	173
9	233
10	353
11	467
12	563
13	743
14	863
15	1277
16	1433
17	1487
18	2213
19	2417
20	2777
21	3083
22	3323
23	4007
24	4373
25	5153
26	7877
27	8387
28	10733
29	11177
30	11783
31	13043
32	13697
33	14537
34	15053
35	15227
36	17207
37	17393
38	17957
39	18917
40	21323
41	22157
42	23873

[2, 3, 5, 17, 23, 47, 107, 173, 233, 353, 467, 563, 743, 863, 1277, 1433, 1487, 2213, 2417, 2777, 3083, 3323, 4007, 4373, 5153, 7877, 8387, 10733, 11177, 11783, 13043, 13697, 14537, 15053, 15227, 17207, 17393, 17957, 18917, 21323, 22157, 23873]

cp's OEIS Frontend

A055472 Primes of the form k(k+1)/2+2 (i.e., two more than a triangular number).

Table of values

List of values