A361558 - cp's OEIS frontend

A361558 Expansion of e.g.f. exp((x + x^2/2 + x^3/6 + x^4/24)/(1-x)).

n	a(n)
0	1
1	1
2	4
3	20
4	127
5	976
6	8776
7	90084
8	1037555
9	13233077
10	184956386
11	2809098986
12	46038214729
13	809411443790
14	15189361799522
15	302932433571356
16	6396529241755881
17	142523960797017589
18	3341115707515530400
19	82187749261419720712
20	2116421112495023612311

[1, 1, 4, 20, 127, 976, 8776, 90084, 1037555, 13233077, 184956386, 2809098986, 46038214729, 809411443790, 15189361799522, 302932433571356, 6396529241755881, 142523960797017589, 3341115707515530400, 82187749261419720712, 2116421112495023612311]

cp's OEIS Frontend

A361558 Expansion of e.g.f. exp((x + x^2/2 + x^3/6 + x^4/24)/(1-x)).

Table of values

List of values