A377509 - cp's OEIS frontend

A377509 Expansion of e.g.f. exp(Sum_{k>=1} phi(k)^4 * x^k/k), where phi is the Euler totient function A000010.

n	a(n)
0	1
1	1
2	2
3	36
4	234
5	7290
6	54540
7	1408680
8	23119740
9	341788860
10	11790437400
11	231972879600
12	8206299070200
13	191673262380600
14	6154270418696400
15	206515993375692000
16	6574758436640394000
17	269828090984990538000
18	9531096165082736244000
19	411037724983993923816000

[1, 1, 2, 36, 234, 7290, 54540, 1408680, 23119740, 341788860, 11790437400, 231972879600, 8206299070200, 191673262380600, 6154270418696400, 206515993375692000, 6574758436640394000, 269828090984990538000, 9531096165082736244000, 411037724983993923816000]

cp's OEIS Frontend

A377509 Expansion of e.g.f. exp(Sum_{k>=1} phi(k)^4 * x^k/k), where phi is the Euler totient function A000010.

Table of values

List of values