%I A124650
%S A124650 3,14,42,141,399,1274
%N A124650 Number of n-digit numbers m such that m and m^10 are zeroless.
%e A124650 a(3)=2 because #{113, 118, 125, 142, 144, 166, 172, 176, 186, 187, 195, 
               228, 244, 263, 268, 296, 315, 334, 357, 367, 376, 383, 387, 388, 
               396, 426, 467, 527, 563, 573, 574, 662, 764, 773, 783, 788, 863, 
               883, 885, 892, 976, 992} = 42
%e A124650 Corresponding zeroless 10-th powers are:
%e A124650 {339456738992222314849,523383555379856794624,931322574615478515625,
%e A124650 ... 318895612267497741289677389824,784328825964927423585898725376,
%e A124650 922819411957263335393616461824}.
%Y A124650 Cf. A104264.
%Y A124650 Sequence in context: A104905 A055650 A000550 this_sequence A063903 A115005 
               A058389
%Y A124650 Adjacent sequences: A124647 A124648 A124649 this_sequence A124651 A124652 
               A124653
%K A124650 base,more,nonn
%O A124650 1,1
%A A124650 Zak Seidov (zakseidov(AT)gmail.com), Dec 22 2006