cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A026081 Integers in reverse alphabetical order in U.S. English.

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%I A026081 #12 Nov 16 2023 21:05:57
%S A026081 0,2202202202202,2202202202222,2202202202223,2202202202226
%N A026081 Integers in reverse alphabetical order in U.S. English.
%C A026081 This sequence is ill-defined from the 2nd term on. Proof: Assume that x is the term following the initial 0. Then the number x*10^(6n), for n sufficiently large, is spelled out: name(x) name(10^(6n)). This comes after name(x) in lexicographical order, and thus before x in this sequence. - _M. F. Hasler_, Nov 20 2009
%e A026081 Zero, two trillion, two hundred and two billion, two hundred and two million, two hundred and two thousand, two hundred and two, ...
%Y A026081 Cf. A004740, A019440.
%Y A026081 See A127352 for another version. - _N. J. A. Sloane_, Dec 05 2009
%K A026081 nonn,word,dumb
%O A026081 1,2
%A A026081 _Neil Fernandez_