A077763 - cp's OEIS frontend

A077763 Number of ways of pairing the odd squares of the numbers 1 to n with the even squares of the numbers n+1 to 2n such that each pair sums to a prime.

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	0
7	1
8	1
9	2
10	2
11	0
12	1
13	7
14	2
15	10
16	14
17	38
18	6
19	118
20	62
21	80
22	144
23	604
24	711
25	6201
26	4005
27	8570
28	14544
29	126725
30	124618
31	281566
32	323297
33	382314
34	157132
35	1374799
36	594736
37	7274196
38	8865745
39	27572536
40	34358242
41	309696376
42	457523710
43	2659232903
44	1429551708
45	8294430525

[1, 1, 0, 1, 2, 0, 1, 1, 2, 2, 0, 1, 7, 2, 10, 14, 38, 6, 118, 62, 80, 144, 604, 711, 6201, 4005, 8570, 14544, 126725, 124618, 281566, 323297, 382314, 157132, 1374799, 594736, 7274196, 8865745, 27572536, 34358242, 309696376, 457523710, 2659232903, 1429551708, 8294430525]

cp's OEIS Frontend

A077763 Number of ways of pairing the odd squares of the numbers 1 to n with the even squares of the numbers n+1 to 2n such that each pair sums to a prime.

Table of values

List of values