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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, 2, 4, 8, 16, 32, 64, 128, 640, 1280, 6400 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

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.

LINKS

Table of n, a(n) for n=0..10.

CROSSREFS

Cf. A079839.

Sequence in context: A264791 A290851 A290670 * A109912 A079845 A278995

Adjacent sequences:  A079835 A079836 A079837 * A079839 A079840 A079841

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Feb 15 2003

STATUS

approved

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Last modified January 21 01:45 EST 2022. Contains 350473 sequences. (Running on oeis4.)