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Search: id:A061098
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| A061098 |
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Concatenation of all numbers less than or equal to n other than the phi(n) numbers relatively prime to n. |
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+0
1
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| 1, 2, 3, 24, 5, 2346, 7, 2468, 369, 2456810, 11, 2346891012, 13, 24678101214
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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a(1) = 1 as the number itself is to be included. a(p) = p if p is a prime (by definition).
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EXAMPLE
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a(6) = 2346, as 2,3,4,6 are not coprime to 6 and 1 and 5 are coprime to 6.
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CROSSREFS
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A000010.
Sequence in context: A037277 A001783 A095996 this_sequence A119619 A099617 A092043
Adjacent sequences: A061095 A061096 A061097 this_sequence A061099 A061100 A061101
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KEYWORD
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nonn,base
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 19 2001
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