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A018856 2^a(n) is smallest power of 2 beginning with n. +0
3
0, 1, 5, 2, 9, 6, 46, 3, 53, 10, 50, 7, 17, 47, 77, 4, 34, 54, 84, 11, 31, 51, 61, 81, 8, 18, 38, 48, 68, 78, 98, 5, 25, 35, 45, 55, 75, 85, 95, 12, 22, 32, 42, 145, 52, 62, 72, 82, 92, 102, 9, 19, 29, 39, 142, 49, 59, 162, 69, 79, 89, 192, 99, 6, 16, 119, 26, 36, 139, 46, 149, 56, 66 (list; graph; listen)
OFFSET

1,3

REFERENCES

A. M. & I. M. Yaglom, Challenging Mathematical Problems With Elementary Solutions, Vol. 1 pp. 29;199-200 Prob. 91a Dover NY 1987

CROSSREFS

Cf. A018802.

Adjacent sequences: A018853 A018854 A018855 this_sequence A018857 A018858 A018859

Sequence in context: A003671 A065262 A051356 this_sequence A019093 A097897 A063761

KEYWORD

nonn,base

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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