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A032689 Numbers n such that n surrounded by digit '7' is a lucky number. 1
1, 2, 7, 8, 16, 19, 20, 23, 35, 37, 43, 44, 50, 56, 67, 68, 71, 73, 82, 83, 89, 91, 94, 101, 103, 104, 115, 127, 134, 151, 154, 155, 157, 161, 169, 199, 212, 215, 218, 227, 232, 257, 260, 268, 272, 278, 289, 290, 299, 301, 308, 311, 317, 319, 322, 337, 338 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

CROSSREFS

Cf. A000959, A032684.

Sequence in context: A263602 A162664 A341706 * A331489 A300476 A213037

Adjacent sequences:  A032686 A032687 A032688 * A032690 A032691 A032692

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, May 15 1998

STATUS

approved

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Last modified April 13 01:36 EDT 2021. Contains 342934 sequences. (Running on oeis4.)