cp's OEIS Frontend

A216163 Nonnegative integers whose English number-words have the identical number of letters contributing to each represented letter-frequency.

%I A216163 #8 Sep 02 2012 16:53:06
%S A216163 0,1,2,4,5,6,8,10,19,21,40,44,46,59,60,61,64,80,84,140,152,166,251,
%T A216163 405,468,504,661,864,1556,1566,1655,1665,2456,2466,2654,2664,2686,
%U A216163 4256,4266,4652,4662,4700,5000,5156,5166,5651,5661,6015,6155,6165,6254,6264,6286,6452,6462,6551,6561,6682,7400,8813,13808,15006,30100,40400
%N A216163 Nonnegative integers whose English number-words have the identical number of letters contributing to each represented letter-frequency.
%C A216163 Sequence members may be classified by type: {f1, f2, f3, ... fn}, representing the number of letters occurring {once, twice, thrice, ... n times}. The smallest representative of some distinct types are...
%C A216163 0 {4}
%C A216163 1 {3}
%C A216163 8 {5}
%C A216163 19 {2,0,2}
%C A216163 21 {3,3}
%C A216163 46 {8}
%C A216163 64 {9}
%C A216163 80 {6}
%C A216163 84 {10}
%C A216163 140 {5,5}
%C A216163 152 {6,6}
%C A216163 468 {7,7}
%C A216163 1556 {5,5,5}
%C A216163 4700 {4,4,4}
%C A216163 5000 {12}
%C A216163 8813 {3,3,3,0,3}
%C A216163 100300 {2,2,2,2,2}
%C A216163 114144 {3,0,3,0,3,3}
%C A216163 124486 {4,4,0,4,4}
%C A216163 131256 {3,3,3,3,3}
%C A216163 202214 {3,0,3,3,3}
%C A216163 250386 {4,4,4,0,4}
%C A216163 334468 {3,3,3,0,3,3}
%C A216163 1000013 {3,3,3}
%C A216163 1030460 {4,4,4,4}
%C A216163 4000414 {3,3,3,3}
%C A216163 7000000 {4,4}
%C A216163 13131434 {3,3,0,0,3,3,3}
%C A216163 21445566 {3,3,3,3,3,3}
%C A216163 24425526 {3,3,3,3,3,0,3}
%C A216163 121236636 {2,2,2,2,2,2,2,2}
%C A216163 131154477 {2,2,2,2,2,2,2,0,0,2}
%C A216163 132244566 {3,3,3,0,3,3,3}
%C A216163 134000589 {3,3,3,3,0,3}
%H A216163 Eric Harshbarger, <a href="http://www.ericharshbarger.org/cgi-bin/logolog.cgi?20120807">Favorite Number</a>
%H A216163 Hans Havermann, <a href="http://gladhoboexpress.blogspot.ca/2012/08/wordthreepeating.html">wordthreepeating</a>
%e A216163 19 is in the sequence because two letters contribute to each of the two letter-frequencies of "nineteen": I & T to frequency 1, E & N to frequency 3. 5000 is in the sequence because twelve letters contribute to the only letter-frequency (1) of "five thousand". 3000000000000000013000019000000 is in the sequence because one letter contributes to each of the nine letter-frequencies of "three nonillion thirteen trillion nineteen million": M to frequency 1, H to 2, R to 3, O to 4, T to 5, L to 6, E to 7, I to 8, N to 9.
%Y A216163 Cf. A059916 (a small subset)
%K A216163 nonn,word
%O A216163 1,3
%A A216163 _Hans Havermann_, Sep 02 2012