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Search: id:A102701
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| A102701 |
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Non-"Ding!Bong!" numbers: numbers which are not a combination of 5's and/or of 7's. |
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+0
3
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| 0, 1, 2, 3, 4, 6, 8, 9, 11, 13, 16, 18, 23
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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From the "Ding!Bong!" game: count the natural numbers replacing 5 by Ding! and 7 by Bong! From 24 on, all numbers are combinations of Dings! or of Bongs!
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LINKS
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Site map then "math curiosities" then "number cyclopedia" then Number 5, Number 5.
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EXAMPLE
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0 1 2 3 4 Ding! 6 Bong! 8 9 Ding-Ding! 11 Ding-Bong! 13 Bong-Bong! Ding-Ding-Ding! 16 Ding-Ding-Bong! 18 Ding-Bong-Bong! Ding-Ding-Ding-Ding! Bong-Bong-Bong! Ding-Ding-Ding-Bong! 23 Ding-Ding-Bong-Bong! Ding-Ding-Ding-Ding-Ding! Ding-Bong-Bong-Bong! Ding-Ding-Ding-Ding-Bong! Bong-Bong-Bong-Bong! Ding-Ding-Ding-Bong-Bong! Ding-Ding-Ding-Ding-Ding-Ding!
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CROSSREFS
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Cf. A102705.
Sequence in context: A084829 A018649 A135676 this_sequence A111208 A085500 A155211
Adjacent sequences: A102698 A102699 A102700 this_sequence A102702 A102703 A102704
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KEYWORD
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dumb,easy,fini,full,nonn
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AUTHOR
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Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), Feb 04 2005
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