A185672 - cp's OEIS frontend

A185672 Let f(n) = Sum_{j>=1} j^n3^j/binomial(2j,j) = r_n*Pi/sqrt(3) + s_n; sequence gives r_n.

n	a(n)
0	4
1	20
2	172
3	2084
4	32524
5	620900
6	14014732
7	365100644
8	10781360524
9	355869575780
10	12984066273292
11	518879340911204
12	22540052170064524
13	1057507154836226660
14	53291594817628483852
15	2870834224548449841764
16	164633490033421041392524
17	10013579272685278891133540
18	643872718978606529940390412

[4, 20, 172, 2084, 32524, 620900, 14014732, 365100644, 10781360524, 355869575780, 12984066273292, 518879340911204, 22540052170064524, 1057507154836226660, 53291594817628483852, 2870834224548449841764, 164633490033421041392524, 10013579272685278891133540, 643872718978606529940390412]

cp's OEIS Frontend

A185672 Let f(n) = Sum_{j>=1} j^n3^j/binomial(2j,j) = r_n*Pi/sqrt(3) + s_n; sequence gives r_n.

Table of values

List of values

cp's OEIS Frontend

A185672 Let f(n) = Sum_{j>=1} j^n*3^j/binomial(2*j,j) = r_n*Pi/sqrt(3) + s_n; sequence gives r_n.

Table of values

List of values

A185672 Let f(n) = Sum_{j>=1} j^n3^j/binomial(2j,j) = r_n*Pi/sqrt(3) + s_n; sequence gives r_n.