A215484 - cp's OEIS frontend

A215484 a(n) = 21a(n-2) + 7a(n-3), with a(0)=a(1)=0, a(2)=9.

n	a(n)
0	0
1	0
2	9
3	0
4	189
5	63
6	3969
7	2646
8	83790
9	83349
10	1778112
11	2336859
12	37923795
13	61520823
14	812757708
15	1557403848
16	17498557629
17	38394784764
18	378371537145
19	928780383447
20	8214565773393
21	22152988812402
22	179007343925382
23	522714725474193
24	3914225144119836
25	12230060642435727
26	85857731104835907
27	284230849499989119

[0, 0, 9, 0, 189, 63, 3969, 2646, 83790, 83349, 1778112, 2336859, 37923795, 61520823, 812757708, 1557403848, 17498557629, 38394784764, 378371537145, 928780383447, 8214565773393, 22152988812402, 179007343925382, 522714725474193, 3914225144119836, 12230060642435727, 85857731104835907, 284230849499989119]

cp's OEIS Frontend

A215484 a(n) = 21a(n-2) + 7a(n-3), with a(0)=a(1)=0, a(2)=9.

Table of values

List of values

cp's OEIS Frontend

A215484 a(n) = 21*a(n-2) + 7*a(n-3), with a(0)=a(1)=0, a(2)=9.

Table of values

List of values

A215484 a(n) = 21a(n-2) + 7a(n-3), with a(0)=a(1)=0, a(2)=9.