A132868 - cp's OEIS frontend

A132868 a(n) = 3a(n-1) - a(n-3) + 3a(n-4), with initial values 1,3,7,20.

n	a(n)
0	1
1	3
2	7
3	20
4	60
5	182
6	547
7	1641
8	4921
9	14762
10	44286
11	132860
12	398581
13	1195743
14	3587227
15	10761680
16	32285040
17	96855122
18	290565367
19	871696101
20	2615088301
21	7845264902
22	23535794706
23	70607384120
24	211822152361
25	635466457083
26	1906399371247
27	5719198113740

[1, 3, 7, 20, 60, 182, 547, 1641, 4921, 14762, 44286, 132860, 398581, 1195743, 3587227, 10761680, 32285040, 96855122, 290565367, 871696101, 2615088301, 7845264902, 23535794706, 70607384120, 211822152361, 635466457083, 1906399371247, 5719198113740]

cp's OEIS Frontend

A132868 a(n) = 3a(n-1) - a(n-3) + 3a(n-4), with initial values 1,3,7,20.

Table of values

List of values

cp's OEIS Frontend

A132868 a(n) = 3*a(n-1) - a(n-3) + 3*a(n-4), with initial values 1,3,7,20.

Table of values

List of values

A132868 a(n) = 3a(n-1) - a(n-3) + 3a(n-4), with initial values 1,3,7,20.