A380556 - cp's OEIS frontend

A380556 E.g.f. A(x) satisfies A(x) = real( 1 + xA(x)^(2i) ), where i^2 = -1.

n	a(n)
0	1
1	1
2	0
3	-12
4	48
5	820
6	-14160
7	-69160
8	5900160
9	-44796960
10	-3089865600
11	88646729600
12	1412786918400
13	-135956951062400
14	1023512450688000
15	203887248898944000
16	-7307555382586368000
17	-252816835499795840000
18	26110132266648748032000
19	-95216226972043640320000
20	-80962066973581160140800000

[1, 1, 0, -12, 48, 820, -14160, -69160, 5900160, -44796960, -3089865600, 88646729600, 1412786918400, -135956951062400, 1023512450688000, 203887248898944000, -7307555382586368000, -252816835499795840000, 26110132266648748032000, -95216226972043640320000, -80962066973581160140800000]

cp's OEIS Frontend

A380556 E.g.f. A(x) satisfies A(x) = real( 1 + xA(x)^(2i) ), where i^2 = -1.

Table of values

List of values

cp's OEIS Frontend

A380556 E.g.f. A(x) satisfies A(x) = real( 1 + x*A(x)^(2*i) ), where i^2 = -1.

Table of values

List of values

A380556 E.g.f. A(x) satisfies A(x) = real( 1 + xA(x)^(2i) ), where i^2 = -1.