A158857 - cp's OEIS frontend

A158857 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 A158848.

n	a(n)
17	7
18	0
19	7
20	7
21	0
22	8
23	20
24	0
25	9
26	10
27	0
28	23
29	50
30	0
31	28
32	42
33	0
34	69
35	201
36	0
37	79
38	93
39	0
40	216
41	399
42	0
43	278
44	445
45	0
46	684
47	1649
48	0
49	630
50	1008
51	0
52	2132
53	4892
54	0
55	3066
56	3681
57	0
58	6852

[7, 0, 7, 7, 0, 8, 20, 0, 9, 10, 0, 23, 50, 0, 28, 42, 0, 69, 201, 0, 79, 93, 0, 216, 399, 0, 278, 445, 0, 684, 1649, 0, 630, 1008, 0, 2132, 4892, 0, 3066, 3681, 0, 6852]

cp's OEIS Frontend

A158857 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 A158848.

Table of values

List of values