A248646 - cp's OEIS frontend

A248646 Expansion of x(5+x+x^2)/(1-2x).

n	a(n)
1	2
2	5
3	11
4	23
5	46
6	92
7	184
8	368
9	736
10	1472
11	2944
12	5888
13	11776
14	23552
15	47104
16	94208
17	188416
18	376832
19	753664
20	1507328
21	3014656
22	6029312
23	12058624
24	24117248
25	48234496
26	96468992
27	192937984
28	385875968
29	771751936
30	1543503872
31	3087007744
32	6174015488
33	12348030976

[2, 5, 11, 23, 46, 92, 184, 368, 736, 1472, 2944, 5888, 11776, 23552, 47104, 94208, 188416, 376832, 753664, 1507328, 3014656, 6029312, 12058624, 24117248, 48234496, 96468992, 192937984, 385875968, 771751936, 1543503872, 3087007744, 6174015488, 12348030976]

cp's OEIS Frontend

A248646 Expansion of x(5+x+x^2)/(1-2x).

Table of values

List of values

cp's OEIS Frontend

A248646 Expansion of x*(5+x+x^2)/(1-2*x).

Table of values

List of values

A248646 Expansion of x(5+x+x^2)/(1-2x).