A230011 - cp's OEIS frontend

A230011 Numerators of sum of rows of the inverse of the triangle of Euler polynomial coefficients P(0,x)=1, 2P(n,x)=(1+x)*[(1+x)^(n-1)+x^(n-1)].

n	a(n)
0	1
1	0
2	1
3	-1
4	1
5	-1
6	3
7	-3
8	-11
9	11
10	113
11	-113
12	-1269
13	1269
14	20575
15	-20575
16	-888419
17	888419
18	24729909
19	-24729909
20	-862992415
21	862992415
22	36913939753
23	-36913939753
24	-1899853421901
25	1899853421901
26	115841483491307
27	-115841483491307

[1, 0, 1, -1, 1, -1, 3, -3, -11, 11, 113, -113, -1269, 1269, 20575, -20575, -888419, 888419, 24729909, -24729909, -862992415, 862992415, 36913939753, -36913939753, -1899853421901, 1899853421901, 115841483491307, -115841483491307]

cp's OEIS Frontend

A230011 Numerators of sum of rows of the inverse of the triangle of Euler polynomial coefficients P(0,x)=1, 2P(n,x)=(1+x)*[(1+x)^(n-1)+x^(n-1)].

Table of values

List of values