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A011537 Numbers that contain at least one 7. 20
7, 17, 27, 37, 47, 57, 67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 87, 97, 107, 117, 127, 137, 147, 157, 167, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 187, 197, 207, 217, 227, 237, 247, 257, 267, 270, 271, 272, 273, 274, 275, 276, 277 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..53.

Index entries for 10-automatic sequences.

FORMULA

a(n) ~ n. - Charles R Greathouse IV, Feb 12 2017

MATHEMATICA

Select[Range[300], DigitCount[#, 10, 7]>0&] (* Harvey P. Dale, Mar 29 2016 *)

PROG

(PARI) is(n)=!!setsearch(Set(digits(n)), 7) \\ Charles R Greathouse IV, Feb 12 2017

CROSSREFS

Sequence in context: A300186 A261934 A253075 * A283610 A043517 A277594

Adjacent sequences:  A011534 A011535 A011536 * A011538 A011539 A011540

KEYWORD

nonn,base,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified January 18 01:36 EST 2019. Contains 319260 sequences. (Running on oeis4.)