A020699 - cp's OEIS frontend

A020699 Expansion of (1-3x)/(1-5x).

n	a(n)
0	1
1	2
2	10
3	50
4	250
5	1250
6	6250
7	31250
8	156250
9	781250
10	3906250
11	19531250
12	97656250
13	488281250
14	2441406250
15	12207031250
16	61035156250
17	305175781250
18	1525878906250
19	7629394531250
20	38146972656250
21	190734863281250
22	953674316406250

[1, 2, 10, 50, 250, 1250, 6250, 31250, 156250, 781250, 3906250, 19531250, 97656250, 488281250, 2441406250, 12207031250, 61035156250, 305175781250, 1525878906250, 7629394531250, 38146972656250, 190734863281250, 953674316406250]

cp's OEIS Frontend

A020699 Expansion of (1-3x)/(1-5x).

Table of values

List of values

cp's OEIS Frontend

A020699 Expansion of (1-3*x)/(1-5*x).

Table of values

List of values

A020699 Expansion of (1-3x)/(1-5x).