A382300 - cp's OEIS frontend

A382300 a(n) = Sum_{k=0..floor(n/2)} (k+1) * binomial(2k,2n-4*k).

n	a(n)
0	1
1	0
2	2
3	2
4	3
5	18
6	7
7	60
8	65
9	144
10	356
11	410
12	1272
13	1722
14	3743
15	7202
16	11482
17	25566
18	40421
19	81610
20	147169
21	259810
22	507267
23	867792
24	1659112
25	2961860
26	5362592
27	9940420
28	17583485
29	32564548
30	58228386
31	105606458
32	191831767
33	343313042
34	625086891
35	1119760040
36	2023087045

[1, 0, 2, 2, 3, 18, 7, 60, 65, 144, 356, 410, 1272, 1722, 3743, 7202, 11482, 25566, 40421, 81610, 147169, 259810, 507267, 867792, 1659112, 2961860, 5362592, 9940420, 17583485, 32564548, 58228386, 105606458, 191831767, 343313042, 625086891, 1119760040, 2023087045]

cp's OEIS Frontend

A382300 a(n) = Sum_{k=0..floor(n/2)} (k+1) * binomial(2k,2n-4*k).

Table of values

List of values

cp's OEIS Frontend

A382300 a(n) = Sum_{k=0..floor(n/2)} (k+1) * binomial(2*k,2*n-4*k).

Table of values

List of values

A382300 a(n) = Sum_{k=0..floor(n/2)} (k+1) * binomial(2k,2n-4*k).