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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

Table of n, a(n) for n=1..50.

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 A098949 A031296

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 July 20 01:38 EDT 2019. Contains 325168 sequences. (Running on oeis4.)