A099623 - cp's OEIS frontend

A099623 a(n) = Sum_{k=0..floor(n/2)} C(n-k,k+2)2^(n-k-2)(3/2)^k.

n	a(n)
0	0
1	0
2	1
3	6
4	27
5	104
6	369
7	1242
8	4039
9	12828
10	40077
11	123758
12	379011
13	1153872
14	3498025
15	10572354
16	31884543
17	96010436
18	288788613
19	867967830
20	2607282235
21	7828953720
22	23501774241
23	70536546986
24	211674885687
25	635160738924
26	1905765565309

[0, 0, 1, 6, 27, 104, 369, 1242, 4039, 12828, 40077, 123758, 379011, 1153872, 3498025, 10572354, 31884543, 96010436, 288788613, 867967830, 2607282235, 7828953720, 23501774241, 70536546986, 211674885687, 635160738924, 1905765565309]

cp's OEIS Frontend

A099623 a(n) = Sum_{k=0..floor(n/2)} C(n-k,k+2)2^(n-k-2)(3/2)^k.

Table of values

List of values

cp's OEIS Frontend

A099623 a(n) = Sum_{k=0..floor(n/2)} C(n-k,k+2)*2^(n-k-2)*(3/2)^k.

Table of values

List of values

A099623 a(n) = Sum_{k=0..floor(n/2)} C(n-k,k+2)2^(n-k-2)(3/2)^k.