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%I #9 Aug 02 2012 04:46:56
%S 6,7,9,12,15,18,20,22,23,24,28,30,36,37,40,41,45,46,51,53,54,55,59,60,
%T 62,67,68,69,72,75,77,79,82,85,86,90,93,99,100,102,105,108,111,113,
%U 114,116,117,120,121,124,128,129,130,133,135,139,142,144,146,147,148,150,155,161,162,164,165,167,170,173,175,177,179,180,182,183,186,192,193,195,198,199,201,202,206,208,210,217,221,223,224,225,226,227,234,237,239,240,241,242
%N Index of Fibonacci numbers having last digit less than corresponding tribonacci number.
%C Fib(a(n)) mod 10 < trib(a(n)) mod 10.
%e a(5)=15 since Fib(15)=610 and trib(15)=2209 then 0<9
%Y Cf. A000045, A186077, A186078.
%K nonn,base
%O 1,1
%A _Carmine Suriano_, Feb 11 2011