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A212499 Numbers n such that n divides the product of digits of n. 1
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 301 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Every integer except zero divides zero.

a(n+9) = A011540(n+1).

A050720(2*n) = number of terms of length n for n >= 2.

LINKS

Arkadiusz Wesolowski, Table of n, a(n) for n = 1..1000

MATHEMATICA

Union[Range[9], Select[Range[10, 301], DigitCount[#, 10, 0] > 0 &]]

Select[Range[301], Divisible[Product[i, {i, IntegerDigits[#]}], #] &]

CROSSREFS

Cf. A049101.

Sequence in context: A069024 A175396 A107085 * A244890 A032945 A236402

Adjacent sequences:  A212496 A212497 A212498 * A212500 A212501 A212502

KEYWORD

base,easy,nonn

AUTHOR

Arkadiusz Wesolowski, May 19 2012

STATUS

approved

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Last modified November 17 08:17 EST 2018. Contains 317275 sequences. (Running on oeis4.)