OFFSET
1,1
LINKS
Reiner Moewald, Table of n, a(n) for n = 1..98
FORMULA
m <= n * 5^a(2 + floor(log_10(n))) with a(n) from A066343.
EXAMPLE
a(1)=5 since 1|11, 2|12, 5|15, 25|125, 125|1125.
PROG
(Python)
# for N < 100
import math
for N in range (1, 100):
ANZ = 0
for M in range(1, 195312500):
Z = int(str(int(N)) + str(int(M)))
if ((Z % M == 0) and (M % 10 > 0)):
ANZ = ANZ + 1
print(N, ANZ)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Reiner Moewald, May 16 2016
STATUS
approved