A333561 - cp's OEIS frontend

A333561 a(n) = Sum_{j = 0..2n} binomial(n+j-1,j)2^j.

n	a(n)
0	1
1	7
2	129
3	2815
4	65537
5	1579007
6	38862849
7	970522623
8	24494735361
9	623210135551
10	15956734640129
11	410649406472191
12	10612705274626049
13	275241225206890495
14	7159857331658817537
15	186731505521384226815
16	4880983719142471237633
17	127836403093194475044863

[1, 7, 129, 2815, 65537, 1579007, 38862849, 970522623, 24494735361, 623210135551, 15956734640129, 410649406472191, 10612705274626049, 275241225206890495, 7159857331658817537, 186731505521384226815, 4880983719142471237633, 127836403093194475044863]

cp's OEIS Frontend

A333561 a(n) = Sum_{j = 0..2n} binomial(n+j-1,j)2^j.

Table of values

List of values

cp's OEIS Frontend

A333561 a(n) = Sum_{j = 0..2*n} binomial(n+j-1,j)*2^j.

Table of values

List of values

A333561 a(n) = Sum_{j = 0..2n} binomial(n+j-1,j)2^j.