A360102 - cp's OEIS frontend

A360102 a(n) = Sum_{k=0..n} binomial(n+2k,n-k) Catalan(k).

n	a(n)
0	1
1	2
2	7
3	30
4	141
5	703
6	3655
7	19603
8	107679
9	602756
10	3426049
11	19721069
12	114728723
13	673494466
14	3984493735
15	23732956453
16	142204128507
17	856560123504
18	5183708936061
19	31502904805922
20	192180259402691
21	1176416604202925
22	7223943302003917
23	44486888142708088

[1, 2, 7, 30, 141, 703, 3655, 19603, 107679, 602756, 3426049, 19721069, 114728723, 673494466, 3984493735, 23732956453, 142204128507, 856560123504, 5183708936061, 31502904805922, 192180259402691, 1176416604202925, 7223943302003917, 44486888142708088]

cp's OEIS Frontend

A360102 a(n) = Sum_{k=0..n} binomial(n+2k,n-k) Catalan(k).

Table of values

List of values

cp's OEIS Frontend

A360102 a(n) = Sum_{k=0..n} binomial(n+2*k,n-k) * Catalan(k).

Table of values

List of values

A360102 a(n) = Sum_{k=0..n} binomial(n+2k,n-k) Catalan(k).