A120315 - cp's OEIS frontend

A120315 Combinatorial prime formulas. This sequence gives the coefficients a(n) of combinatorial sum formulas of n-th primes or lesser: prime(n) = 2^(n-5)/(n-1)! Sum_{i=1..n} a(i) * C(n-1,i-1) * (1-(n-i)/2).

n	a(n)
1	32
2	8
3	32
4	52
5	208
6	508
7	2672
8	9278
9	56048
10	304132
11	1654552
12	12649198
13	79342112
14	615363002
15	5010269828
16	43213043413
17	393086195632
18	3633203615548
19	38586294965048
20	389261740224662
21	4344329090764472
22	51205748753742838

[32, 8, 32, 52, 208, 508, 2672, 9278, 56048, 304132, 1654552, 12649198, 79342112, 615363002, 5010269828, 43213043413, 393086195632, 3633203615548, 38586294965048, 389261740224662, 4344329090764472, 51205748753742838]

cp's OEIS Frontend

A120315 Combinatorial prime formulas. This sequence gives the coefficients a(n) of combinatorial sum formulas of n-th primes or lesser: prime(n) = 2^(n-5)/(n-1)! Sum_{i=1..n} a(i) * C(n-1,i-1) * (1-(n-i)/2).

Table of values

List of values