A352276 - cp's OEIS frontend

A352276 a(0) = 1 and a(n) = Sum_{k = 0..3n} n/(n + 2k)binomial(n + 2k,k) for n >= 1.

n	a(n)
0	1
1	9
2	625
3	58785
4	5986993
5	633580634
6	68611922731
7	7545931449401
8	839183314181297
9	94112350842056469
10	10623982584664109750
11	1205644823097085684641
12	137414820511792364274091
13	15718880489100999321142976
14	1803621273322664188151352631
15	207499462144488863314062180035

[1, 9, 625, 58785, 5986993, 633580634, 68611922731, 7545931449401, 839183314181297, 94112350842056469, 10623982584664109750, 1205644823097085684641, 137414820511792364274091, 15718880489100999321142976, 1803621273322664188151352631, 207499462144488863314062180035]

cp's OEIS Frontend

A352276 a(0) = 1 and a(n) = Sum_{k = 0..3n} n/(n + 2k)binomial(n + 2k,k) for n >= 1.

Table of values

List of values

cp's OEIS Frontend

A352276 a(0) = 1 and a(n) = Sum_{k = 0..3*n} n/(n + 2*k)*binomial(n + 2*k,k) for n >= 1.

Table of values

List of values

A352276 a(0) = 1 and a(n) = Sum_{k = 0..3n} n/(n + 2k)binomial(n + 2k,k) for n >= 1.