A215494 - cp's OEIS frontend

A215494 a(n) = 7a(n-1) - 14a(n-2) + 7*a(n-3) with a(1)=7, a(2)=21, a(3)=70.

n	a(n)
1	7
2	21
3	70
4	245
5	882
6	3234
7	12005
8	44933
9	169099
10	638666
11	2417807
12	9167018
13	34790490
14	132119827
15	501941055
16	1907443237
17	7249766678
18	27557748813
19	104759610858
20	398257159370
21	1514069805269
22	5756205681709
23	21884262613787
24	83201447389466
25	316323894905207

[7, 21, 70, 245, 882, 3234, 12005, 44933, 169099, 638666, 2417807, 9167018, 34790490, 132119827, 501941055, 1907443237, 7249766678, 27557748813, 104759610858, 398257159370, 1514069805269, 5756205681709, 21884262613787, 83201447389466, 316323894905207]

cp's OEIS Frontend

A215494 a(n) = 7a(n-1) - 14a(n-2) + 7*a(n-3) with a(1)=7, a(2)=21, a(3)=70.

Table of values

List of values

cp's OEIS Frontend

A215494 a(n) = 7*a(n-1) - 14*a(n-2) + 7*a(n-3) with a(1)=7, a(2)=21, a(3)=70.

Table of values

List of values

A215494 a(n) = 7a(n-1) - 14a(n-2) + 7*a(n-3) with a(1)=7, a(2)=21, a(3)=70.