A112093 - cp's OEIS frontend

A112093 Numerator of 3Sum_{i=1..n} 1/(i^2C(2*i,i)).

n	a(n)
0	0
1	3
2	13
3	197
4	1105
5	9211
6	130277
7	82987349
8	331950131
9	16929464521
10	29241805241
11	3538258509761
12	6259995854281
13	1057939300471201
14	1057939300716589
15	51133732870640471
16	372975463296151087
17	107789908892879155343
18	51058377896658637853
19	681986753565766904623961

[0, 3, 13, 197, 1105, 9211, 130277, 82987349, 331950131, 16929464521, 29241805241, 3538258509761, 6259995854281, 1057939300471201, 1057939300716589, 51133732870640471, 372975463296151087, 107789908892879155343, 51058377896658637853, 681986753565766904623961]

cp's OEIS Frontend

A112093 Numerator of 3Sum_{i=1..n} 1/(i^2C(2*i,i)).

Table of values

List of values

cp's OEIS Frontend

A112093 Numerator of 3*Sum_{i=1..n} 1/(i^2*C(2*i,i)).

Table of values

List of values

A112093 Numerator of 3Sum_{i=1..n} 1/(i^2C(2*i,i)).