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Search: id:A138480
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| A138480 |
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Auto-biographical numbers: the first digit specifies how many 0 in the number, the next digit specifies how many 1, etc. This version is not limited to 10 digits. |
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+0
2
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| 1210, 2020, 21200, 3211000, 42101000, 521001000, 6210001000, 72100001000, 821000001000, 9210000001000
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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E. Angelini, "Jeux de suites", in Dossier Pour La Science, pp. 32-35, Volume 59 (Jeux math'), April/June 2008, Paris.
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EXAMPLE
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72100001000 has 7 digits equal to "0", 2 digits equal to "1", 1 digit each "2" and "7" and no other digits.
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CROSSREFS
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Cf. Autobiographical numbers up to 10 digits: A046043. Mutually-praising pairs: A138481 and A138482.
Sequence in context: A068534 A135239 A046043 this_sequence A047627 A047626 A105311
Adjacent sequences: A138477 A138478 A138479 this_sequence A138481 A138482 A138483
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KEYWORD
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base,fini,full,nonn
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AUTHOR
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Martin Fuller (martin_n_fuller(AT)btinternet.com), Mar 20 2008
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