A385668 - cp's OEIS frontend

A385668 a(n) = Sum_{k=0..n} 2^(n-k) * binomial(4n+1,k) binomial(4*n-k,n-k).

n	a(n)
0	1
1	13
2	274
3	6466
4	160564
5	4104733
6	106927384
7	2822352952
8	75224906716
9	2020064928916
10	54569506803574
11	1481263780787122
12	40369492671395476
13	1103922337550185894
14	30274295947104877312
15	832318570941153758356
16	22932288741241396871068
17	633044952458953424442364

[1, 13, 274, 6466, 160564, 4104733, 106927384, 2822352952, 75224906716, 2020064928916, 54569506803574, 1481263780787122, 40369492671395476, 1103922337550185894, 30274295947104877312, 832318570941153758356, 22932288741241396871068, 633044952458953424442364]

cp's OEIS Frontend

A385668 a(n) = Sum_{k=0..n} 2^(n-k) * binomial(4n+1,k) binomial(4*n-k,n-k).

Table of values

List of values

cp's OEIS Frontend

A385668 a(n) = Sum_{k=0..n} 2^(n-k) * binomial(4*n+1,k) * binomial(4*n-k,n-k).

Table of values

List of values

A385668 a(n) = Sum_{k=0..n} 2^(n-k) * binomial(4n+1,k) binomial(4*n-k,n-k).