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A214957 Numbers for which the sum of reciprocals of nonzero digits is an integer. 4
0, 1, 10, 11, 22, 100, 101, 110, 111, 122, 202, 212, 220, 221, 236, 244, 263, 326, 333, 362, 424, 442, 623, 632, 1000, 1001, 1010, 1011, 1022, 1100, 1101, 1110, 1111, 1122, 1202, 1212, 1220, 1221, 1236, 1244, 1263, 1326, 1333, 1362, 1424, 1442, 1623, 1632 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

A214950(a(n)) = 1.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

MATHEMATICA

Join[{0}, Select[Range[2000], IntegerQ[Total[1/DeleteCases[ IntegerDigits[ #], 0]]]&]] (* Harvey P. Dale, Sep 21 2014 *)

PROG

(Haskell)

a214957 n = a214957_list !! (n-1)

a214957_list = [x | x <- [0..], a214950 x == 1]

CROSSREFS

Cf. A034708 (subsequence).

Sequence in context: A022315 A061590 A173900 * A051803 A082517 A300376

Adjacent sequences:  A214954 A214955 A214956 * A214958 A214959 A214960

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Aug 02 2012

STATUS

approved

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Last modified April 24 22:26 EDT 2019. Contains 322446 sequences. (Running on oeis4.)