A099583 - cp's OEIS frontend

A099583 a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, k-1)2^(n-k-1)(3/2)^(k-1).

n	a(n)
0	0
1	0
2	1
3	2
4	10
5	26
6	91
7	260
8	820
9	2420
10	7381
11	22022
12	66430
13	198926
14	597871
15	1792520
16	5380840
17	16139240
18	48427561
19	145272842
20	435848050
21	1307514626
22	3922632451
23	11767808780
24	35303692060
25	105910810460
26	317733228541
27	953198888462

[0, 0, 1, 2, 10, 26, 91, 260, 820, 2420, 7381, 22022, 66430, 198926, 597871, 1792520, 5380840, 16139240, 48427561, 145272842, 435848050, 1307514626, 3922632451, 11767808780, 35303692060, 105910810460, 317733228541, 953198888462]

cp's OEIS Frontend

A099583 a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, k-1)2^(n-k-1)(3/2)^(k-1).

Table of values

List of values

cp's OEIS Frontend

A099583 a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, k-1)*2^(n-k-1)*(3/2)^(k-1).

Table of values

List of values

A099583 a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, k-1)2^(n-k-1)(3/2)^(k-1).