A113042 - cp's OEIS frontend

A113042 Number of solutions to +-p(1)+-p(2)+-...+-p(2n) = 3 where p(i) is the i-th prime.

n	a(n)
1	0
2	2
3	1
4	7
5	15
6	45
7	139
8	438
9	1419
10	4703
11	16019
12	55146
13	190254
14	671215
15	2404179
16	8534995
17	30635448
18	110495549
19	401418693
20	1467388464
21	5393131894
22	19883104535
23	73856058401
24	273600682457
25	1017557492609
26	3803885439979
27	14266466901249
28	53564801078049

[0, 2, 1, 7, 15, 45, 139, 438, 1419, 4703, 16019, 55146, 190254, 671215, 2404179, 8534995, 30635448, 110495549, 401418693, 1467388464, 5393131894, 19883104535, 73856058401, 273600682457, 1017557492609, 3803885439979, 14266466901249, 53564801078049]

cp's OEIS Frontend

A113042 Number of solutions to +-p(1)+-p(2)+-...+-p(2n) = 3 where p(i) is the i-th prime.

Table of values

List of values