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A079838 a(1) = 1, and then smallest multiple of a(n) which has no nonzero digit in common with a(n). +0
1
1, 2, 4, 8, 16, 32, 64, 128, 640, 1280, 6400 (list; graph; listen)
OFFSET

0,2

COMMENT

The sequence is infinite and the pattern is visible after a(7): a(2n) = 2*a(2n-1) and a(2n+1) = 5*a(2n) n > 3.

CROSSREFS

Cf. A079839.

Sequence in context: A138815 A103662 A023423 this_sequence A109912 A079845 A117302

Adjacent sequences: A079835 A079836 A079837 this_sequence A079839 A079840 A079841

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 15 2003

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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