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 A127050 #9 Dec 05 2021 00:10:50 %S A127050 1,3,5,7,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8, %T A127050 9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2, %U A127050 3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,1,0,1,3,0,1,5,0 %N A127050 A007376(2n+1). %C A127050 This and the other "decimations" of A007376 were suggested by a problem in Honsberger's book. %D A127050 R. Honsberger, Mathematical Chestnuts from Around the World, MAA, 2001; see p. 163. %o A127050 (Python) %o A127050 from itertools import islice, count %o A127050 def A127050gen(): return islice((int(d) for n in count(0) for d in str(n)),1,None,2) %o A127050 A127050_list = list(islice(A127050gen(),40)) # _Chai Wah Wu_, Dec 04 2021 %Y A127050 List of decimations of A007376: A127050 A127353 A127414 A127508 A127584 A127734 A127794 A127950 A128178 A128211 A128359 A128423 A128475 A128881. %K A127050 nonn,base %O A127050 0,2 %A A127050 _N. J. A. Sloane_, Jul 23 2008