A322186 - cp's OEIS frontend

A322186 G.f.: exp( Sum_{n>=1} A322185(n)x^n/n ), where A322185(n) = sigma(2n) * binomial(2*n,n)/2.

n	a(n)
0	1
1	3
2	15
3	76
4	357
5	1662
6	8203
7	36609
8	169800
9	788024
10	3586350
11	15948147
12	73761986
13	324147729
14	1454796651
15	6544916640
16	28902107643
17	126842754933
18	567156315794
19	2468434955040
20	10893525305088
21	47854663427104
22	208582052412240
23	905923236202737
24	3975385018556868
25	17200981327476354
26	74619131550054048
27	323976744392754994
28	1400917964875907424
29	6031485491299656747

[1, 3, 15, 76, 357, 1662, 8203, 36609, 169800, 788024, 3586350, 15948147, 73761986, 324147729, 1454796651, 6544916640, 28902107643, 126842754933, 567156315794, 2468434955040, 10893525305088, 47854663427104, 208582052412240, 905923236202737, 3975385018556868, 17200981327476354, 74619131550054048, 323976744392754994, 1400917964875907424, 6031485491299656747]

cp's OEIS Frontend

A322186 G.f.: exp( Sum_{n>=1} A322185(n)x^n/n ), where A322185(n) = sigma(2n) * binomial(2*n,n)/2.

Table of values

List of values

cp's OEIS Frontend

A322186 G.f.: exp( Sum_{n>=1} A322185(n)*x^n/n ), where A322185(n) = sigma(2*n) * binomial(2*n,n)/2.

Table of values

List of values

A322186 G.f.: exp( Sum_{n>=1} A322185(n)x^n/n ), where A322185(n) = sigma(2n) * binomial(2*n,n)/2.