A259497 - cp's OEIS frontend

A259497 a(n) = number of steps before A055641(num(i)) = 0, when num(i) = num(i-1) + A055641(num(i-1)) and num(0) = 10^n, where A055641(n) is the number of zero digits in n.

n	a(n)
1	1
2	10
3	96
4	918
5	8778
6	83970
7	803652
8	7695702
9	73736351
10	706940003
11	6782083197
12	65107856455
13	625462980243
14	6012764576492
15	57843691102715
16	556865542063090
17	5364870125881211
18	51722954280818076
19	499024949301954326
20	4818086348226292202
21	46551954003050282966

[1, 10, 96, 918, 8778, 83970, 803652, 7695702, 73736351, 706940003, 6782083197, 65107856455, 625462980243, 6012764576492, 57843691102715, 556865542063090, 5364870125881211, 51722954280818076, 499024949301954326, 4818086348226292202, 46551954003050282966]

cp's OEIS Frontend

A259497 a(n) = number of steps before A055641(num(i)) = 0, when num(i) = num(i-1) + A055641(num(i-1)) and num(0) = 10^n, where A055641(n) is the number of zero digits in n.

Table of values

List of values