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 A032697 Exactly 1 digit from {1,2,3,4,5,6,7,8,9} can precede a(n) to form a lucky number. 0
 13, 25, 43, 49, 53, 71, 103, 113, 125, 137, 141, 145, 149, 155, 157, 159, 165, 193, 199, 219, 239, 255, 267, 275, 287, 295, 297, 307, 313, 317, 333, 347, 349, 381, 383, 407, 417, 423, 429, 431, 437, 453, 457, 497, 499, 509, 511, 521, 537, 541, 555, 557 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE If a(n) = 333 then we find only '7'333 to be a lucky number. CROSSREFS Cf. A000959. Sequence in context: A344900 A195558 A026058 * A125724 A277714 A163551 Adjacent sequences:  A032694 A032695 A032696 * A032698 A032699 A032700 KEYWORD nonn,base,less AUTHOR Patrick De Geest, May 15 1998 STATUS approved

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Last modified December 2 08:31 EST 2021. Contains 349437 sequences. (Running on oeis4.)