A174467 - cp's OEIS frontend

A174467 G.f.: exp( Sum_{n>=1} A174468(n)x^n/n ) where A174468(n) = Sum_{d|n} dsigma(n/d)*sigma(d).

n	a(n)
0	1
1	1
2	5
3	10
4	31
5	58
6	157
7	299
8	711
9	1367
10	2987
11	5679
12	11807
13	22117
14	44006
15	81513
16	156885
17	286413
18	537058
19	967367
20	1773882
21	3155223
22	5677183
23	9976095
24	17661695
25	30682683
26	53544796
27	92037152
28	158575796
29	269850363
30	459636546
31	774851829

[1, 1, 5, 10, 31, 58, 157, 299, 711, 1367, 2987, 5679, 11807, 22117, 44006, 81513, 156885, 286413, 537058, 967367, 1773882, 3155223, 5677183, 9976095, 17661695, 30682683, 53544796, 92037152, 158575796, 269850363, 459636546, 774851829]

cp's OEIS Frontend

A174467 G.f.: exp( Sum_{n>=1} A174468(n)x^n/n ) where A174468(n) = Sum_{d|n} dsigma(n/d)*sigma(d).

Table of values

List of values

cp's OEIS Frontend

A174467 G.f.: exp( Sum_{n>=1} A174468(n)*x^n/n ) where A174468(n) = Sum_{d|n} d*sigma(n/d)*sigma(d).

Table of values

List of values

A174467 G.f.: exp( Sum_{n>=1} A174468(n)x^n/n ) where A174468(n) = Sum_{d|n} dsigma(n/d)*sigma(d).