A057776 - cp's OEIS frontend

A057776 a(n) is the least number k such that prime(k) - 1 is divisible by 2^(n-1) and the quotient is odd.

n	a(n)
1	1
2	2
3	3
4	13
5	7
6	25
7	44
8	116
9	55
10	974
11	1581
12	2111
13	1470
14	4289
15	10847
16	15000
17	6543
18	91466
19	62947
20	397907
21	498178
22	1452314
23	6025010
24	20197904
25	38946356
26	9385401
27	24843812
28	98842359
29	166808880
30	556542914
31	154570517
32	3132108468
33	7417604438
34	3217817383
35	47999122016

[1, 2, 3, 13, 7, 25, 44, 116, 55, 974, 1581, 2111, 1470, 4289, 10847, 15000, 6543, 91466, 62947, 397907, 498178, 1452314, 6025010, 20197904, 38946356, 9385401, 24843812, 98842359, 166808880, 556542914, 154570517, 3132108468, 7417604438, 3217817383, 47999122016]

cp's OEIS Frontend

A057776 a(n) is the least number k such that prime(k) - 1 is divisible by 2^(n-1) and the quotient is odd.

Table of values

List of values