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A062943
When expressed in base 7 and then interpreted in base 9, is a multiple of the original number.
13
0, 1, 2, 3, 4, 5, 6, 426, 428, 452, 880, 906, 932, 1360, 7687134, 53809938, 2571412221, 2582875882, 5016909933, 5154289245, 7736157463, 7748731389, 39728612701, 109634280128, 116779253264, 198109784526, 233617301990, 480974817878, 1011847148845, 1432434922737
OFFSET
1,3
COMMENTS
The terms I added (including those in the b-file) are all the remaining ones < 10^30. They have been computed by essentially using ideas from Giovanni Resta. - Dimiter Skordev, Jan 26 2020
LINKS
Dimiter Skordev, Python script
EXAMPLE
426 in base 7 is 1146, which interpreted in base 9 is 852=2*426.
MATHEMATICA
Join[{0}, Select[Range[1400], Divisible[FromDigits[IntegerDigits[#, 7], 9], #]&]] (* Harvey P. Dale, Mar 29 2012 *)
CROSSREFS
Cf. A032549.
Sequence in context: A073788 A326315 A004879 * A004890 A153678 A004901
KEYWORD
base,nonn
AUTHOR
Erich Friedman, Jul 21 2001
EXTENSIONS
More terms from Naohiro Nomoto, Aug 07 2001
a(16) and beyond from Dimiter Skordev, Jan 25 2020
STATUS
approved