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 A032700 Exactly 4 digits from {1,2,3,4,5,6,7,8,9} can precede a(n) to form a lucky number. 0
 9, 29, 35, 83, 85, 93, 123, 173, 211, 233, 249, 339, 379, 419, 427, 471, 473, 487, 501, 551, 575, 587, 621, 625, 675, 687, 763, 773, 787, 801, 809, 841, 915, 951, 999, 1039, 1055, 1073, 1157, 1169, 1189, 1191, 1207, 1239, 1341, 1405, 1425, 1529, 1617, 1721 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE If a(n) = 1617 then we find only '1'1617, '3'1617, '6'1617 and '7'1617 to be lucky numbers. CROSSREFS Cf. A000959. Sequence in context: A258483 A044976 A002642 * A322946 A350963 A098949 Adjacent sequences: A032697 A032698 A032699 * A032701 A032702 A032703 KEYWORD nonn,base,less AUTHOR Patrick De Geest, May 15 1998 STATUS approved

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Last modified February 3 09:09 EST 2023. Contains 360034 sequences. (Running on oeis4.)