A196557 - cp's OEIS frontend

A196557 O.g.f.: Sum_{n>=0} 4(n+4)^(n-1) x^n / Product_{k=1..n} (1+k*x).

n	a(n)
0	1
1	4
2	20
3	128
4	1036
5	10308
6	122560
7	1701092
8	27053556
9	485683128
10	9723771156
11	214934627476
12	5201286731560
13	136818097071820
14	3888121468512308
15	118737900886653664
16	3878569457507036988
17	134960059001226137588
18	4984357865462772982112

[1, 4, 20, 128, 1036, 10308, 122560, 1701092, 27053556, 485683128, 9723771156, 214934627476, 5201286731560, 136818097071820, 3888121468512308, 118737900886653664, 3878569457507036988, 134960059001226137588, 4984357865462772982112]

cp's OEIS Frontend

A196557 O.g.f.: Sum_{n>=0} 4(n+4)^(n-1) x^n / Product_{k=1..n} (1+k*x).

Table of values

List of values

cp's OEIS Frontend

A196557 O.g.f.: Sum_{n>=0} 4*(n+4)^(n-1) * x^n / Product_{k=1..n} (1+k*x).

Table of values

List of values

A196557 O.g.f.: Sum_{n>=0} 4(n+4)^(n-1) x^n / Product_{k=1..n} (1+k*x).