A376614 - cp's OEIS frontend

A376614 a(n) is the least n-gonal number that is an interprime, i.e. the average of two consecutive primes.

n	a(n)
3	6
4	4
5	12
6	6
7	18
8	21
9	9
10	370
11	30
12	12
13	405
14	39
15	15
16	45
17	231
18	18
19	2619
20	2772
21	21
22	205
23	596
24	69
25	72
26	26
27	154
28	81
29	574
30	30
31	441
32	93
33	315
34	34
35	102
36	105
37	108
38	111
39	39
40	1377
41	120
42	42
43	1485
44	129
45	45
46	1990
47	138
48	465
49	144
50	50
51	150
52	4564
53	515
54	19684
55	1120
56	56
57	334
58	846
59	861
60	60
61	180
62	5474
63	186
64	64
65	192
66	195

[6, 4, 12, 6, 18, 21, 9, 370, 30, 12, 405, 39, 15, 45, 231, 18, 2619, 2772, 21, 205, 596, 69, 72, 26, 154, 81, 574, 30, 441, 93, 315, 34, 102, 105, 108, 111, 39, 1377, 120, 42, 1485, 129, 45, 1990, 138, 465, 144, 50, 150, 4564, 515, 19684, 1120, 56, 334, 846, 861, 60, 180, 5474, 186, 64, 192, 195]

cp's OEIS Frontend

A376614 a(n) is the least n-gonal number that is an interprime, i.e. the average of two consecutive primes.

Table of values

List of values