A179980 - cp's OEIS frontend

A179980 a(n) = 10a(n-1) - (-1)^n n, a(1) = 1.

n	a(n)
1	1
2	8
3	83
4	826
5	8265
6	82644
7	826447
8	8264462
9	82644629
10	826446280
11	8264462811
12	82644628098
13	826446280993
14	8264462809916
15	82644628099175
16	826446280991734
17	8264462809917357
18	82644628099173552
19	826446280991735539
20	8264462809917355370
21	82644628099173553721

[1, 8, 83, 826, 8265, 82644, 826447, 8264462, 82644629, 826446280, 8264462811, 82644628098, 826446280993, 8264462809916, 82644628099175, 826446280991734, 8264462809917357, 82644628099173552, 826446280991735539, 8264462809917355370, 82644628099173553721]

cp's OEIS Frontend

A179980 a(n) = 10a(n-1) - (-1)^n n, a(1) = 1.

Table of values

List of values

cp's OEIS Frontend

A179980 a(n) = 10*a(n-1) - (-1)^n * n, a(1) = 1.

Table of values

List of values

A179980 a(n) = 10a(n-1) - (-1)^n n, a(1) = 1.