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.
%I A336586 #23 Feb 21 2023 02:10:31 %S A336586 0,4,1000000000000000000000000000000000000000000000000000000000000000, %T A336586 1000000000000000,8,3,-1,1,1000000000000,2,-1,3,2,8,0,4,0,-1, %U A336586 1000000000000000,4,2,1 %N A336586 Smallest nonnegative integer containing the n-th letter of the Hebrew alphabet (in Hebrew using feminine numbers), or -1 if no such integer exists. %C A336586 This sequence assumes the use of the short scale for naming large numbers. It also assumes that 10^9 is called "ביליון" (billion); if 10^9 is instead called "מיליארד" (milliard) then a(4) = 10^9 rather than 10^15. %C A336586 Final forms of the letters are considered the same as the normal forms. There are no numbers with ז (zayin), כ (kaf), or צ (tsadi) in their names. ג (gimel) appears only in vocabulary transliterated into Hebrew based on Landon Curt Noll's latin-based power of 1000 naming system and not in everyday vocabulary (hence why a(3) = 10^63). %H A336586 Ely Golden, <a href="/A298199/a298199.java.txt">Arbitrary precision Hebrew number naming program in Java (from A298199)</a> %H A336586 Ely Golden, <a href="/A336586/a336586.txt">Spellings for numbers in A336586</a> %H A336586 Landon Curt Noll, <a href="http://www.isthe.com/chongo/tech/math/number/number.html">The English Name of a Number</a>. %Y A336586 Cf. A336587, A111098, A147876. %K A336586 sign,fini,full,word %O A336586 1,2 %A A336586 _Ely Golden_, Jul 26 2020