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Search: id:A043248
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A043248 Numbers n such that 4 and 7 occur juxtaposed in the base 10 representation of n but not of n-1. +0
1
47, 74, 147, 174, 247, 274, 347, 374, 447, 470, 547, 574, 647, 674, 740, 774, 847, 874, 947, 974, 1047, 1074, 1147, 1174, 1247, 1274, 1347, 1374, 1447, 1470, 1547, 1574, 1647, 1674, 1740, 1774, 1847, 1874, 1947, 1974, 2047 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A092178 A165335 A039425 this_sequence A044028 A126095 A132259

Adjacent sequences: A043245 A043246 A043247 this_sequence A043249 A043250 A043251

KEYWORD

nonn,base

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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