A300011 - cp's OEIS frontend

A300011 Expansion of e.g.f. exp(Sum_{k>=1} phi(k)*x^k/k!), where phi() is the Euler totient function (A000010).

n	a(n)
0	1
1	1
2	2
3	6
4	20
5	80
6	362
7	1820
8	10084
9	60522
10	391864
11	2714514
12	20001700
13	156107224
14	1284705246
15	11112088358
16	100698613720
17	953478331288
18	9410963022318
19	96614921664444
20	1029705968813656
21	11373102766644372
22	129972789566984682
23	1534638410054873892
24	18696544357738885720

[1, 1, 2, 6, 20, 80, 362, 1820, 10084, 60522, 391864, 2714514, 20001700, 156107224, 1284705246, 11112088358, 100698613720, 953478331288, 9410963022318, 96614921664444, 1029705968813656, 11373102766644372, 129972789566984682, 1534638410054873892, 18696544357738885720]

cp's OEIS Frontend

A300011 Expansion of e.g.f. exp(Sum_{k>=1} phi(k)*x^k/k!), where phi() is the Euler totient function (A000010).

Table of values

List of values