A291345 - cp's OEIS frontend

A291345 Numbers k such that k!4 + 2^5 is prime, where k!4 = k!!!! is the quadruple factorial number (A007662).

n	a(n)
1	5
2	7
3	11
4	13
5	19
6	21
7	25
8	27
9	35
10	37
11	51
12	55
13	65
14	71
15	105
16	107
17	129
18	223
19	229
20	273
21	307
22	337
23	345
24	479
25	509
26	517
27	519
28	921
29	963
30	993
31	1309
32	1697
33	1855
34	1871
35	2451
36	2573
37	2755
38	3059
39	3271
40	4005
41	4823
42	17079
43	20209
44	20559
45	37845
46	38343
47	68383
48	79617
49	81539

[5, 7, 11, 13, 19, 21, 25, 27, 35, 37, 51, 55, 65, 71, 105, 107, 129, 223, 229, 273, 307, 337, 345, 479, 509, 517, 519, 921, 963, 993, 1309, 1697, 1855, 1871, 2451, 2573, 2755, 3059, 3271, 4005, 4823, 17079, 20209, 20559, 37845, 38343, 68383, 79617, 81539]

cp's OEIS Frontend

A291345 Numbers k such that k!4 + 2^5 is prime, where k!4 = k!!!! is the quadruple factorial number (A007662).

Table of values

List of values