A243218 - cp's OEIS frontend

A243218 Number of n-digit integers x such that x + A007954(x) has n digits, where A007954(x) is the product of decimal digits of x.

n	a(n)
1	5
2	63
3	756
4	8268
5	86225
6	880519
7	8898517
8	89471520
9	897248572
10	8985712192
11	89925825853
12	899614672173
13	8997997446679
14	89989593213308
15	899945924502919
16	8999718992342921
17	89998539650321017
18	899992410699128981
19	8999960560129165187
20	89999795045731606967

[5, 63, 756, 8268, 86225, 880519, 8898517, 89471520, 897248572, 8985712192, 89925825853, 899614672173, 8997997446679, 89989593213308, 899945924502919, 8999718992342921, 89998539650321017, 899992410699128981, 8999960560129165187, 89999795045731606967]

cp's OEIS Frontend

A243218 Number of n-digit integers x such that x + A007954(x) has n digits, where A007954(x) is the product of decimal digits of x.

Table of values

List of values