A171693 - cp's OEIS frontend

A171693 Expansion of g.f.: 2^(1+floor(n/2))n!((1-y)^(n+1)/(1+y))f(x, y, m), where f(x, y, m) = 2^(m+1)exp(2^mt)/((1-yexp(t))(1 + (2^(m+1)-1)exp(2^m*t))), and m = 0.

n	a(n)
0	1
1	-1
2	14
3	-1
4	4
5	-16
6	504
7	-16
8	4
9	-34
10	372
11	2178
12	35288
13	2178
14	372
15	-34
16	496
17	-5888
18	65728
19	749824
20	4185760
21	749824
22	65728
23	-5888
24	496
25	-11056
26	154912
27	-767856
28	23350656
29	230640288
30	770603712
31	230640288
32	23350656
33	-767856
34	154912
35	-11056

[1, -1, 14, -1, 4, -16, 504, -16, 4, -34, 372, 2178, 35288, 2178, 372, -34, 496, -5888, 65728, 749824, 4185760, 749824, 65728, -5888, 496, -11056, 154912, -767856, 23350656, 230640288, 770603712, 230640288, 23350656, -767856, 154912, -11056]

cp's OEIS Frontend

A171693 Expansion of g.f.: 2^(1+floor(n/2))n!((1-y)^(n+1)/(1+y))f(x, y, m), where f(x, y, m) = 2^(m+1)exp(2^mt)/((1-yexp(t))(1 + (2^(m+1)-1)exp(2^m*t))), and m = 0.

Table of values

List of values

cp's OEIS Frontend

A171693 Expansion of g.f.: 2^(1+floor(n/2))*n!*((1-y)^(n+1)/(1+y))*f(x, y, m), where f(x, y, m) = 2^(m+1)*exp(2^m*t)/((1-y*exp(t))*(1 + (2^(m+1)-1)*exp(2^m*t))), and m = 0.

Table of values

List of values

A171693 Expansion of g.f.: 2^(1+floor(n/2))n!((1-y)^(n+1)/(1+y))f(x, y, m), where f(x, y, m) = 2^(m+1)exp(2^mt)/((1-yexp(t))(1 + (2^(m+1)-1)exp(2^m*t))), and m = 0.