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A048518 Primes containing only two distinct digits whose sum of digits is 28, the second perfect number. 2
1999, 9199, 338383, 383833, 1181881, 1881181, 1881811, 2222929, 2922229, 8118181, 8188111, 8881111, 9222229, 15551551, 15555151, 15555511, 16166611, 16616161, 33333373, 33733333, 34434343, 44334343, 44343433, 51155551, 51515551, 55155151, 55155511, 55515151 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Calculated by Robert T. McQuaid (robert.mcquaid(AT)headwaters.com).
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..21755 (first 200 terms from Sean A. Irvine)
C. Rivera, Source from Carlos Rivera's Puzzle Site.
MATHEMATICA
Select[Prime[Range[3100000]], Count[DigitCount[#], 0]==8&&Total[ IntegerDigits[ #]]==28&] (* Harvey P. Dale, Jun 11 2016 *)
CROSSREFS
Sequence in context: A230202 A037029 A048517 * A043416 A125680 A162238
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, May 15 1999
EXTENSIONS
More terms from Naohiro Nomoto, Jul 28 2001
Offset corrected by Sean A. Irvine, Jun 20 2021
STATUS
approved

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Last modified February 23 08:04 EST 2024. Contains 370269 sequences. (Running on oeis4.)