A338870 - cp's OEIS frontend

A338870 Triangle T(n,k) defined by Sum_{k=1..n} T(n,k)u^kx^n/n! = exp(Sum_{n>0} ud(n)x^n/n!), where d(n) is the number of divisors of n.

n	a(n)
1	1
2	2
3	1
4	2
5	6
6	1
7	3
8	20
9	12
10	1
11	2
12	55
13	80
14	20
15	1
16	4
17	142
18	405
19	220
20	30
21	1
22	2
23	322
24	1792
25	1785
26	490
27	42
28	1
29	4
30	779
31	7224
32	12152
33	5810
34	952
35	56
36	1
37	3
38	1608
39	27323
40	73920
41	56532
42	15498
43	1680
44	72
45	1
46	4
47	3894
48	99690
49	414815
50	482160
51	204204
52	35910
53	2760
54	90
55	1

[1, 2, 1, 2, 6, 1, 3, 20, 12, 1, 2, 55, 80, 20, 1, 4, 142, 405, 220, 30, 1, 2, 322, 1792, 1785, 490, 42, 1, 4, 779, 7224, 12152, 5810, 952, 56, 1, 3, 1608, 27323, 73920, 56532, 15498, 1680, 72, 1, 4, 3894, 99690, 414815, 482160, 204204, 35910, 2760, 90, 1]

cp's OEIS Frontend

A338870 Triangle T(n,k) defined by Sum_{k=1..n} T(n,k)u^kx^n/n! = exp(Sum_{n>0} ud(n)x^n/n!), where d(n) is the number of divisors of n.

Table of values

List of values

cp's OEIS Frontend

A338870 Triangle T(n,k) defined by Sum_{k=1..n} T(n,k)*u^k*x^n/n! = exp(Sum_{n>0} u*d(n)*x^n/n!), where d(n) is the number of divisors of n.

Table of values

List of values

A338870 Triangle T(n,k) defined by Sum_{k=1..n} T(n,k)u^kx^n/n! = exp(Sum_{n>0} ud(n)x^n/n!), where d(n) is the number of divisors of n.