A383138 - cp's OEIS frontend

A383138 a(n) = Sum_{k=0..n} k^4 * 2^(n-k) * binomial(n,k).

n	a(n)
0	0
1	1
2	20
3	189
4	1320
5	7785
6	41148
7	201285
8	929232
9	4100625
10	17452260
11	72098829
12	290521080
13	1146082041
14	4439303820
15	16923738645
16	63619864992
17	236206924065
18	867305334708
19	3152957079645
20	11359168737480
21	40589657212041
22	143957705302620
23	507079568653029

[0, 1, 20, 189, 1320, 7785, 41148, 201285, 929232, 4100625, 17452260, 72098829, 290521080, 1146082041, 4439303820, 16923738645, 63619864992, 236206924065, 867305334708, 3152957079645, 11359168737480, 40589657212041, 143957705302620, 507079568653029]

cp's OEIS Frontend

A383138 a(n) = Sum_{k=0..n} k^4 * 2^(n-k) * binomial(n,k).

Table of values

List of values