0,1

a(0)=8

a(1)=6 because 8*6 = 48

a(2)=26 because 48*26 = 1248

a(3)=626 because 1248*626 = 781248

a(4)=15626 because 781248*15626 = 12207781248

P:=proc(n) local i, j, k; k:=0; j:=n; while j>0 do j:=trunc(j/10); k:=k+1; od; for i from 2 by 1 to n^2 do j:=((n*(i-1)) mod (10^k)); if j=0 then print(i, n*i); break; fi; od; end: P(626);

Sequence in context: A036176 A064685 A075486 this_sequence A058088 A112145 A038284

Adjacent sequences: A123872 A123873 A123874 this_sequence A123876 A123877 A123878

nonn

Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Oct 17 2006, Oct 24 2006