A383987 - cp's OEIS frontend

A383987 Series expansion of the exponential generating function -tridend(-(1-exp(x))) where tridend(x) = (1 - 3x - sqrt(1+6x+x^2)) / (4*x) (A001003).

n	a(n)
0	0
1	1
2	-5
3	49
4	-725
5	14401
6	-360005
7	10863889
8	-384415925
9	15612336481
10	-715930020005
11	36592369889329
12	-2062911091119125
13	127170577711282561
14	-8510569547826528005
15	614491222512504748369
16	-47615614242877583230325
17	3941408640018910366196641

[0, 1, -5, 49, -725, 14401, -360005, 10863889, -384415925, 15612336481, -715930020005, 36592369889329, -2062911091119125, 127170577711282561, -8510569547826528005, 614491222512504748369, -47615614242877583230325, 3941408640018910366196641]

cp's OEIS Frontend

A383987 Series expansion of the exponential generating function -tridend(-(1-exp(x))) where tridend(x) = (1 - 3x - sqrt(1+6x+x^2)) / (4*x) (A001003).

Table of values

List of values

cp's OEIS Frontend

A383987 Series expansion of the exponential generating function -tridend(-(1-exp(x))) where tridend(x) = (1 - 3*x - sqrt(1+6*x+x^2)) / (4*x) (A001003).

Table of values

List of values

A383987 Series expansion of the exponential generating function -tridend(-(1-exp(x))) where tridend(x) = (1 - 3x - sqrt(1+6x+x^2)) / (4*x) (A001003).