A226455 - cp's OEIS frontend

A226455 G.f.: exp( Sum_{n>=1} A056789(n)*x^n/n ), where A056789(n) = Sum_{k=1..n} lcm(k,n)/gcd(k,n).

n	a(n)
0	1
1	1
2	2
3	5
4	10
5	23
6	40
7	86
8	159
9	300
10	559
11	1037
12	1887
13	3400
14	6102
15	10763
16	19027
17	33138
18	57621
19	99160
20	169934
21	289432
22	490208
23	826169
24	1385272
25	2312155
26	3840729
27	6354981
28	10467872
29	17179510
30	28081845
31	45740041
32	74234336
33	120074489
34	193582842
35	311102311
36	498434393

[1, 1, 2, 5, 10, 23, 40, 86, 159, 300, 559, 1037, 1887, 3400, 6102, 10763, 19027, 33138, 57621, 99160, 169934, 289432, 490208, 826169, 1385272, 2312155, 3840729, 6354981, 10467872, 17179510, 28081845, 45740041, 74234336, 120074489, 193582842, 311102311, 498434393]

cp's OEIS Frontend

A226455 G.f.: exp( Sum_{n>=1} A056789(n)*x^n/n ), where A056789(n) = Sum_{k=1..n} lcm(k,n)/gcd(k,n).

Table of values

List of values