A352743 - cp's OEIS frontend

A352743 a(n) = Product_{k=1..n} (p(k+1) + p(k))/(p(k+1) - p(k)), where p(k) = prime(k).

n	a(n)
0	1
1	5
2	20
3	120
4	540
5	6480
6	48600
7	874800
8	9185400
9	79606800
10	2388204000
11	27066312000
12	527793084000
13	22167309528000
14	498764464380000
15	8312741073000000
16	155171166696000000
17	9310270001760000000
18	198619093370880000000
19	6852358721295360000000
20	493369827933265920000000

[1, 5, 20, 120, 540, 6480, 48600, 874800, 9185400, 79606800, 2388204000, 27066312000, 527793084000, 22167309528000, 498764464380000, 8312741073000000, 155171166696000000, 9310270001760000000, 198619093370880000000, 6852358721295360000000, 493369827933265920000000]

cp's OEIS Frontend

A352743 a(n) = Product_{k=1..n} (p(k+1) + p(k))/(p(k+1) - p(k)), where p(k) = prime(k).

Table of values

List of values