A035029 - cp's OEIS frontend

A035029 a(n) = Sum_{k=0..n} (k+1) * Sum_{j=0..n} 2^jbinomial(n,j)binomial(n-k,j).

n	a(n)
0	1
1	5
2	26
3	138
4	743
5	4043
6	22180
7	122468
8	679757
9	3789297
10	21199998
11	118973550
12	669447123
13	3775577367
14	21336790152
15	120795829128
16	684962855705
17	3889578815453
18	22115533878178
19	125892252068498
20	717400693313471
21	4092099111728355
22	23362391663233196
23	133488737662062188
24	763310051648602213

[1, 5, 26, 138, 743, 4043, 22180, 122468, 679757, 3789297, 21199998, 118973550, 669447123, 3775577367, 21336790152, 120795829128, 684962855705, 3889578815453, 22115533878178, 125892252068498, 717400693313471, 4092099111728355, 23362391663233196, 133488737662062188, 763310051648602213]

cp's OEIS Frontend

A035029 a(n) = Sum_{k=0..n} (k+1) * Sum_{j=0..n} 2^jbinomial(n,j)binomial(n-k,j).

Table of values

List of values

cp's OEIS Frontend

A035029 a(n) = Sum_{k=0..n} (k+1) * Sum_{j=0..n} 2^j*binomial(n,j)*binomial(n-k,j).

Table of values

List of values

A035029 a(n) = Sum_{k=0..n} (k+1) * Sum_{j=0..n} 2^jbinomial(n,j)binomial(n-k,j).