A158855 - cp's OEIS frontend

A158855 a(n), a(n+1), a(n+2), for n=5,8,11,... are respectively the numbers of representations of the integers 2^k-2, 2^k, 2^k+2, where k=(n+4)/3, by unordered sums of two odd primes not belonging to A158847.

n	a(n)
14	2
15	0
16	2
17	5
18	0
19	4
20	6
21	0
22	7
23	18
24	0
25	8
26	10
27	0
28	23
29	51
30	0
31	25
32	43
33	0
34	68
35	206
36	0
37	79
38	93
39	0
40	214
41	397
42	0
43	280
44	445
45	0
46	684
47	1650
48	0
49	630
50	1008
51	0
52	2136
53	4894
54	0
55	3065
56	3682
57	0
58	6853

[2, 0, 2, 5, 0, 4, 6, 0, 7, 18, 0, 8, 10, 0, 23, 51, 0, 25, 43, 0, 68, 206, 0, 79, 93, 0, 214, 397, 0, 280, 445, 0, 684, 1650, 0, 630, 1008, 0, 2136, 4894, 0, 3065, 3682, 0, 6853]

cp's OEIS Frontend

A158855 a(n), a(n+1), a(n+2), for n=5,8,11,... are respectively the numbers of representations of the integers 2^k-2, 2^k, 2^k+2, where k=(n+4)/3, by unordered sums of two odd primes not belonging to A158847.

Table of values

List of values