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A052383
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Numbers without 1 as a digit.
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4
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0, 2, 3, 4, 5, 6, 7, 8, 9, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 82, 83, 84, 85, 86, 87, 88, 89
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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R. Zumkeller, Table of n, a(n) for n = 0..1000
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FORMULA
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a(0) = 0, a(n+1) = f(a(n)+1,f(a(n)+1) where f(x,y) = if x<10 and x<>1 then y else if x mod 10 = 1 then f(y+1,y+1) else f(floor(x/10),y). - Reinhard Zumkeller, Mar 02 2008
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MATHEMATICA
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ban1Q[n_]:=FreeQ[IntegerDigits[n], 1]==True; Select[Range[0, 89], ban1Q[#] &] (* Jayanta Basu, May 17 2013 *)
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PROG
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(MAGMA) [ n: n in [0..89] | not 1 in Intseq(n) ]; // Bruno Berselli, May 28 2011
(sh) seq 0 1000 | grep -v 1; # Joerg Arndt, May 29 2011
(PARI) a(n)=my(v=digits(n, 9)); for(i=1, #v, if(v[i], v[i]++)); subst(Pol(v), 'x, 10) \\ Charles R Greathouse IV, Oct 04 2012
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CROSSREFS
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Cf. A004176, A004720, A052404.
Sequence in context: A024657 A140281 A039077 * A110803 A109795 A132029
Adjacent sequences: A052380 A052381 A052382 * A052384 A052385 A052386
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KEYWORD
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base,easy,nonn,changed
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AUTHOR
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Henry Bottomley, Mar 13 2000
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STATUS
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approved
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