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A044369
Numbers n such that string 3,7 occurs in the base 10 representation of n but not of n-1.
0
37, 137, 237, 337, 370, 437, 537, 637, 737, 837, 937, 1037, 1137, 1237, 1337, 1370, 1437, 1537, 1637, 1737, 1837, 1937, 2037, 2137, 2237, 2337, 2370, 2437, 2537, 2637, 2737, 2837, 2937, 3037, 3137, 3237, 3337, 3370, 3437
OFFSET
1,1
CROSSREFS
Sequence in context: A142388 A117504 A055783 * A044750 A141936 A244768
KEYWORD
nonn,base
STATUS
approved