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A180726
20^a(n) is smallest power of 20 beginning with n.
4
0, 1, 5, 2, 9, 6, 46, 3, 53, 10, 50, 7, 17, 47, 77, 4, 34, 54, 84, 1, 31, 51, 61, 81, 8, 18, 38, 48, 68, 78, 98, 5, 25, 35, 45, 55, 75, 85, 95, 2, 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
OFFSET
1,3
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Daniel Mondot, Sep 18 2010
STATUS
approved