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A032686
Numbers k such that k surrounded by digit '1' is a lucky number.
1
1, 4, 5, 7, 10, 20, 23, 25, 26, 28, 29, 40, 44, 47, 49, 50, 61, 64, 70, 71, 73, 77, 80, 83, 92, 94, 101, 109, 118, 130, 134, 137, 139, 149, 152, 154, 158, 164, 172, 173, 178, 181, 191, 196, 199, 212, 214, 215, 220, 230, 232, 239, 241, 248, 262, 263
OFFSET
1,2
CROSSREFS
Sequence in context: A018910 A022936 A057708 * A074300 A344157 A047375
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, May 15 1998
STATUS
approved