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A221532 The number of n-digit numbers where the last k digits are divisible by k for k = 1..n. 0
10, 45, 150, 756, 1530, 5100, 7301, 38646, 42940, 430263, 391149 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

There are ten one-digit numbers divisible by 1 so a(1)=10. For 2-digit numbers, the ones digit must be such that the two digit number divisible by 2 which gives 45 numbers, that is, all even numbers from 10 to 98 to satisfy the requirement. So a(2)=45.

CROSSREFS

Cf. A164836.

Sequence in context: A005714 A175705 A143671 * A241432 A317020 A141499

Adjacent sequences:  A221529 A221530 A221531 * A221533 A221534 A221535

KEYWORD

nonn,base

AUTHOR

Shyam Sunder Gupta, Aug 07 2013

STATUS

approved

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Last modified April 5 22:46 EDT 2020. Contains 333260 sequences. (Running on oeis4.)