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A052404
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Numbers without 2 as a digit.
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2
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0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 60, 61, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 80, 81, 83, 84, 85, 86, 87, 88, 89
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| "Bantu numbers" - Michael Joseph Halm (hierogamous(AT)lycos.com), Aug 13 2002
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REFERENCES
| M. J. Halm, Word Weirdness, Mpossibilities 66 (Feb. 1998), p. 5.
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LINKS
| R. Zumkeller, Table of n, a(n) for n = 0..1000
M. J. Halm, Games
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FORMULA
| If the offset were changed to 0: a(0) = 0, a(n+1) = f(a(n)+1,f(a(n)+1) where f(x,y) = if x<10 and x<>2 then y else if x mod 10 = 2 then f(y+1,y+1) else f(floor(x/10),y). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 02 2008
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PROG
| (MAGMA) [ n: n in [0..89] | not 2 in Intseq(n) ]; // Bruno Berselli, May 28 2011
(sh) seq 0 1000 | grep -v 2; # Joerg Arndt, May 29 2011
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CROSSREFS
| Cf. A004177, A004721, A072809.
Cf. A052383.
Sequence in context: A099474 A105048 A026511 * A026417 A026421 A026481
Adjacent sequences: A052401 A052402 A052403 * A052405 A052406 A052407
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KEYWORD
| base,easy,nonn
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AUTHOR
| Henry Bottomley (se16(AT)btinternet.com), Mar 13 2000
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