A181701 - cp's OEIS frontend

A181701 Near-perfect numbers (A181595) of the form 2^(t-1)*(2^t-2^k-1), where 2^t-2^k-1 is prime, k>=1, t>k.

n	a(n)
1	12
2	20
3	56
4	88
5	104
6	368
7	464
8	992
9	1504
10	1888
11	1952
12	16256
13	24448
14	28544
15	30592
16	32128
17	98048
18	122624
19	128768
20	130304
21	507392
22	521728
23	522752
24	2087936
25	7337984
26	8124416
27	8353792
28	8378368
29	8382464
30	25161728
31	67100672
32	125820928
33	132112384
34	133685248
35	134193152

[12, 20, 56, 88, 104, 368, 464, 992, 1504, 1888, 1952, 16256, 24448, 28544, 30592, 32128, 98048, 122624, 128768, 130304, 507392, 521728, 522752, 2087936, 7337984, 8124416, 8353792, 8378368, 8382464, 25161728, 67100672, 125820928, 132112384, 133685248, 134193152]

cp's OEIS Frontend

A181701 Near-perfect numbers (A181595) of the form 2^(t-1)*(2^t-2^k-1), where 2^t-2^k-1 is prime, k>=1, t>k.

Table of values

List of values