OFFSET
1,2
COMMENTS
a(40) > 3*10^10. - Jason Yuen, May 14 2024
LINKS
EXAMPLE
15 is a term: 212016151413121110654321_7 = 59785983230307066720 = 15 * 3985732215353804448.
MATHEMATICA
b = 7; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[IntegerDigits[#, b], c], b], #] &] (* Robert Price, Mar 12 2020 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
More terms from 6211 from Andrew Gacek (andrew(AT)dgi.net), Feb 20 2000
More terms from Larry Reeves (larryr(AT)acm.org), Sep 29 2001
Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002
a(20)-a(30) from Max Alekseyev, May 13 2011
STATUS
approved