A319173 - cp's OEIS frontend

A319173 Expansion of e.g.f. 1/(1 + x/(1 + (x^2/2!)/(1 + (x^3/3!)/(1 + (x^4/4!)/(1 + ...))))), a continued fraction.

n	a(n)
0	1
1	-1
2	2
3	-3
4	0
5	30
6	-240
7	1470
8	-6720
9	12600
10	214200
11	-4019400
12	45460800
13	-378378000
14	1727926200
15	16358542200
16	-608230022400
17	10777315348800
18	-137136749349600
19	1088994283977600
20	4431653341315200
21	-412892994284971200
22	10654104643073892000
23	-189834731018203471200

[1, -1, 2, -3, 0, 30, -240, 1470, -6720, 12600, 214200, -4019400, 45460800, -378378000, 1727926200, 16358542200, -608230022400, 10777315348800, -137136749349600, 1088994283977600, 4431653341315200, -412892994284971200, 10654104643073892000, -189834731018203471200]

cp's OEIS Frontend

A319173 Expansion of e.g.f. 1/(1 + x/(1 + (x^2/2!)/(1 + (x^3/3!)/(1 + (x^4/4!)/(1 + ...))))), a continued fraction.

Table of values

List of values