A004054 - cp's OEIS frontend

A004054 Expansion of (1-x)/((1+x)(1-2x)(1-3x)).

n	a(n)
0	1
1	3
2	11
3	35
4	111
5	343
6	1051
7	3195
8	9671
9	29183
10	87891
11	264355
12	794431
13	2386023
14	7163531
15	21501515
16	64526391
17	193622863
18	580955971
19	1743042675
20	5229477551
21	15689131703
22	47068793211
23	141209175835
24	423633119911
25	1270910544543
26	3812754003251
27	11438306748995

[1, 3, 11, 35, 111, 343, 1051, 3195, 9671, 29183, 87891, 264355, 794431, 2386023, 7163531, 21501515, 64526391, 193622863, 580955971, 1743042675, 5229477551, 15689131703, 47068793211, 141209175835, 423633119911, 1270910544543, 3812754003251, 11438306748995]

cp's OEIS Frontend

A004054 Expansion of (1-x)/((1+x)(1-2x)(1-3x)).

Table of values

List of values

cp's OEIS Frontend

A004054 Expansion of (1-x)/((1+x)*(1-2*x)*(1-3*x)).

Table of values

List of values

A004054 Expansion of (1-x)/((1+x)(1-2x)(1-3x)).