A383456 - cp's OEIS frontend

A383456 a(n) = 2binomial(2n+4,n)*(n+3)/(n+2).

n	a(n)
0	3
1	16
2	70
3	288
4	1155
5	4576
6	18018
7	70720
8	277134
9	1085280
10	4249388
11	16640960
12	65189475
13	255487680
14	1001800650
15	3930284160
16	15427730010
17	60591880800
18	238098549780
19	936100651200
20	3682173186510
21	14490838080576
22	57053452670100
23	224729967000448
24	885568808835900
25	3491063797713856
26	13767643081368792
27	54315062063687040
28	214354554086311331

[3, 16, 70, 288, 1155, 4576, 18018, 70720, 277134, 1085280, 4249388, 16640960, 65189475, 255487680, 1001800650, 3930284160, 15427730010, 60591880800, 238098549780, 936100651200, 3682173186510, 14490838080576, 57053452670100, 224729967000448, 885568808835900, 3491063797713856, 13767643081368792, 54315062063687040, 214354554086311331]

cp's OEIS Frontend

A383456 a(n) = 2binomial(2n+4,n)*(n+3)/(n+2).

Table of values

List of values

cp's OEIS Frontend

A383456 a(n) = 2*binomial(2*n+4,n)*(n+3)/(n+2).

Table of values

List of values

A383456 a(n) = 2binomial(2n+4,n)*(n+3)/(n+2).