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A116212
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a(n) = A116137(n) - A116137(n-1). {a(k)} also is the concatenation of the positive divisors of the terms of A116137.
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0
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1, 1, 2, 1, 3, 1, 5, 1, 2, 3, 6, 1, 3, 9, 1, 2, 5, 10, 1, 3, 5, 15, 1, 2, 4, 8, 16, 1, 2, 3, 6, 9, 18, 1, 3, 7, 21, 1, 3, 9, 27, 1, 2, 4, 7, 14, 28, 1, 31, 1, 2, 4, 5, 8, 10, 20, 40, 1, 41, 1, 43, 1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1, 2, 29, 58, 1, 59, 1, 2, 31, 62, 1, 67, 1, 2, 41, 82, 1, 83, 1, 5
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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EXAMPLE
| Sequence A116137 begins 1,2,3,5,6,9,... So {a(k)} begins:
1; 1,2; 1,3; 1,5; 1,2,3,6; 1,3,9;...
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CROSSREFS
| Cf. A116137.
Sequence in context: A163961 A101387 A117365 * A079068 A133021 A131208
Adjacent sequences: A116209 A116210 A116211 * A116213 A116214 A116215
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KEYWORD
| nonn,base
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AUTHOR
| Leroy Quet Apr 16 2007
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 30 2008
Edited by Charles R Greathouse IV (charles.greathouse(AT)case.edu), Apr 29 2010
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