A071058 - cp's OEIS frontend

A071058 Number of ways of pairing odd numbers in the range 1 to n with even numbers in the range n+1 to 2n such that each pair sums to a prime.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	4
8	6
9	10
10	7
11	21
12	11
13	40
14	53
15	215
16	181
17	773
18	939
19	3260
20	4432
21	23431
22	15811
23	80724
24	67891
25	429108
26	434963
27	2748239
28	2718150
29	21654009
30	21580655
31	107459138
32	92370364
33	638616984
34	564878656
35	5055810584
36	4545704064
37	35787453599
38	36878092180

[1, 1, 1, 1, 2, 2, 4, 6, 10, 7, 21, 11, 40, 53, 215, 181, 773, 939, 3260, 4432, 23431, 15811, 80724, 67891, 429108, 434963, 2748239, 2718150, 21654009, 21580655, 107459138, 92370364, 638616984, 564878656, 5055810584, 4545704064, 35787453599, 36878092180]

cp's OEIS Frontend

A071058 Number of ways of pairing odd numbers in the range 1 to n with even numbers in the range n+1 to 2n such that each pair sums to a prime.

Table of values

List of values