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Search: id:A090988
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| 2, 4, 2, 8, 4, 2, 16, 8, 4, 2, 32, 16, 8, 4, 2, 64, 32, 16, 8, 4, 2, 128, 64, 32, 16, 8, 4, 2, 256, 128, 64, 32, 16, 8, 4, 2, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 2048, 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 4096, 2048, 1024, 512, 256
(list; table; graph; listen)
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OFFSET
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1,1
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COMMENT
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Given the subsequences in A090774 beginning with the vertex numbers 12,24,48,96,... the intermediate subsequences can be calculated using a(n). For example: 14,29,22,59,45,... = 12,25,20,51,41,... + 2,4,2,8,4,...
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FORMULA
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a(n) = 2^A004736(n)
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EXAMPLE
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A004736 begins
1
2 1
4 2 1
8 4 2 1
so a(n) begins
2
4 2
8 4 2
16 8 4 2
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CROSSREFS
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Cf. A004736, A090774.
Sequence in context: A093895 A030057 A134066 this_sequence A095728 A163897 A113477
Adjacent sequences: A090985 A090986 A090987 this_sequence A090989 A090990 A090991
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KEYWORD
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easy,nonn,tabl,uned
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AUTHOR
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Alford Arnold (Alford1940(AT)AOL.COM), Feb 29 2004
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