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Search: id:A071590
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| A071590 |
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Numbers n such that Reversal(n) < n. |
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+0
5
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| 10, 20, 21, 30, 31, 32, 40, 41, 42, 43, 50, 51, 52, 53, 54, 60, 61, 62, 63, 64, 65, 70, 71, 72, 73, 74, 75, 76, 80, 81, 82, 83, 84, 85, 86, 87, 90, 91, 92, 93, 94, 95, 96, 97, 98, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 201, 210, 211, 220, 221, 230, 231
(list; graph; listen)
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OFFSET
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1,1
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PROGRAM
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(PARI) for(i=2, 300, n=(i); s=ceil(log(n)/log(10)); if((sum(i=0, s, 10^(s-i-1)*(floor(n/10^i*1.)-10*floor(n/10^(i+1)*1.))))<i, print1((i), ", ")))
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CROSSREFS
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Adjacent sequences: A071587 A071588 A071589 this_sequence A071591 A071592 A071593
Sequence in context: A040090 A098176 A132782 this_sequence A098165 A104801 A034048
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KEYWORD
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base,easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 01 2002
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