A356372 - cp's OEIS frontend

A356372 a(n) = Sum_{k=1..n} binomial(2n, k) A000005(k).

n	a(n)
1	2
2	16
3	76
4	386
5	1474
6	7349
7	26807
8	121964
9	487068
10	2105087
11	7486505
12	37278746
13	133488216
14	550615531
15	2263230587
16	9856735046
17	35168418266
18	160420872009
19	573578559659
20	2582163925152
21	10333237435638
22	41122278086361
23	146621866522577
24	712999981650663
25	2702556741014621

[2, 16, 76, 386, 1474, 7349, 26807, 121964, 487068, 2105087, 7486505, 37278746, 133488216, 550615531, 2263230587, 9856735046, 35168418266, 160420872009, 573578559659, 2582163925152, 10333237435638, 41122278086361, 146621866522577, 712999981650663, 2702556741014621]

cp's OEIS Frontend

A356372 a(n) = Sum_{k=1..n} binomial(2n, k) A000005(k).

Table of values

List of values

cp's OEIS Frontend

A356372 a(n) = Sum_{k=1..n} binomial(2*n, k) * A000005(k).

Table of values

List of values

A356372 a(n) = Sum_{k=1..n} binomial(2n, k) A000005(k).