A371836 - cp's OEIS frontend

A371836 a(n) = Sum_{k=0..floor(n/2)} n^k * binomial(2n-2k-1,n-2*k).

n	a(n)
0	1
1	1
2	5
3	19
4	91
5	426
6	2190
7	11467
8	63811
9	365806
10	2200978
11	13677962
12	88553726
13	591576220
14	4093814812
15	29164567635
16	214244414371
17	1616044475734
18	12523774634922
19	99418836782602
20	808492937082410
21	6720935024074092
22	57100849909374340
23	495022008799053006

[1, 1, 5, 19, 91, 426, 2190, 11467, 63811, 365806, 2200978, 13677962, 88553726, 591576220, 4093814812, 29164567635, 214244414371, 1616044475734, 12523774634922, 99418836782602, 808492937082410, 6720935024074092, 57100849909374340, 495022008799053006]

cp's OEIS Frontend

A371836 a(n) = Sum_{k=0..floor(n/2)} n^k * binomial(2n-2k-1,n-2*k).

Table of values

List of values

cp's OEIS Frontend

A371836 a(n) = Sum_{k=0..floor(n/2)} n^k * binomial(2*n-2*k-1,n-2*k).

Table of values

List of values

A371836 a(n) = Sum_{k=0..floor(n/2)} n^k * binomial(2n-2k-1,n-2*k).