A085421 - cp's OEIS frontend

A085421 a(0)=2, a(1)=1, a(n+2)=floor[(e-1/e)*a(n+1)+a(n-2)].

n	a(n)
0	2
1	1
2	4
3	10
4	27
5	73
6	198
7	538
8	1462
9	3974
10	10802
11	29363
12	79816
13	216962
14	589764
15	1603144
16	4357797
17	11845720
18	32200005
19	87528688
20	237927642
21	646754385
22	1758060692
23	4778904432
24	12990409077
25	35311592938
26	95986861417

[2, 1, 4, 10, 27, 73, 198, 538, 1462, 3974, 10802, 29363, 79816, 216962, 589764, 1603144, 4357797, 11845720, 32200005, 87528688, 237927642, 646754385, 1758060692, 4778904432, 12990409077, 35311592938, 95986861417]

cp's OEIS Frontend

A085421 a(0)=2, a(1)=1, a(n+2)=floor[(e-1/e)*a(n+1)+a(n-2)].

Table of values

List of values