OFFSET
1,10
COMMENTS
Here, the digit-reverse operation is defined to preserve trailing zeros: for n=10, digit-reverse(n) = 01 which is a substring of 101*10=1010, so a(10)=101. - R. J. Mathar, Nov 17 2010
FORMULA
a(n) = A181720(n)/n. - Michel Marcus, Aug 12 2015
MAPLE
A181721 := proc(n) nrev := ListTools[Reverse](convert(n, base, 10)) ; for k from 1 do dgskn := convert(k*n, base, 10) ; if verify(nrev, dgskn, sublist) then return k; end if; end do: end proc:
seq(A181721(n), n=1..80) ; # R. J. Mathar, Nov 17 2010
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Claudio Meller, Nov 17 2010
STATUS
approved