A376135 - cp's OEIS frontend

A376135 a(0) = 1; a(n) = Sum_{k=0..n-1} (-1)^k * (2k+1) a(k) * a(n-k-1).

n	a(n)
0	1
1	1
2	-2
3	-15
4	86
5	1030
6	-9844
7	-156219
8	2098406
9	41282298
10	-716119260
11	-16837011158
12	358425572604
13	9820300812556
14	-247923816153128
15	-7765514675946195
16	226869417798485382
17	8001626352728559218
18	-265582398152349968716
19	-10419379442081103988738

[1, 1, -2, -15, 86, 1030, -9844, -156219, 2098406, 41282298, -716119260, -16837011158, 358425572604, 9820300812556, -247923816153128, -7765514675946195, 226869417798485382, 8001626352728559218, -265582398152349968716, -10419379442081103988738]

cp's OEIS Frontend

A376135 a(0) = 1; a(n) = Sum_{k=0..n-1} (-1)^k * (2k+1) a(k) * a(n-k-1).

Table of values

List of values

cp's OEIS Frontend

A376135 a(0) = 1; a(n) = Sum_{k=0..n-1} (-1)^k * (2*k+1) * a(k) * a(n-k-1).

Table of values

List of values

A376135 a(0) = 1; a(n) = Sum_{k=0..n-1} (-1)^k * (2k+1) a(k) * a(n-k-1).