A044023 - OEIS

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A044023

Numbers k such that 3 and 7 occur juxtaposed in the base-10 representation of k but not of k+1.

37, 73, 137, 173, 237, 273, 337, 379, 437, 473, 537, 573, 637, 673, 739, 773, 837, 873, 937, 973, 1037, 1073, 1137, 1173, 1237, 1273, 1337, 1379, 1437, 1473, 1537, 1573, 1637, 1673, 1739, 1773, 1837, 1873, 1937, 1973, 2037

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..41.

CROSSREFS

Sequence in context: A135952 A039420 A043243 * A179579 A069204 A153208

Adjacent sequences: A044020 A044021 A044022 * A044024 A044025 A044026

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved