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 A031312 #18 Feb 05 2022 06:41:29 %S A031312 1,3,5,7,9,1,1,1,3,1,5,1,7,1,9,2,1,2,3,2,5,2,7,2,9,3,1,3,3,3,5,3,7,3, %T A031312 9,4,1,4,3,4,5,4,7,4,9,5,1,5,3,5,5,5,7,5,9,6,1,6,3,6,5,6,7,6,9,7,1,7, %U A031312 3,7,5,7,7,7,9,8,1,8,3,8,5,8,7,8,9,9,1,9,3,9,5,9,7,9,9,1,0,1,1,0,3,1,0,5,1 %N A031312 Successive digits of odd numbers. %C A031312 The constant 0.135791113... whose decimal expansion is this sequence (analogous to Champernowne constant, A033307) is a transcendental number but is not a Liouville number (Wananiyakul et al., 2022). - _Amiram Eldar_, Feb 05 2022 %H A031312 Michael De Vlieger, <a href="/A031312/b031312.txt">Table of n, a(n) for n = 1..10000</a> %H A031312 Saeree Wananiyakul, Vichian Laohakosol and Janyarak Tongsomporn, <a href="https://doi.org/10.1007/978-981-16-3807-7_7">Transcendental Numbers Arising from Mahler's Method</a>, Mathematical, Computational Intelligence and Engineering Approaches for Tourism, Agriculture and Healthcare, Springer, Singapore, 2022, pp. 111-120. %t A031312 Flatten[IntegerDigits[2*Range[60] - 1]] (* _Stefan Steinerberger_, Apr 14 2006 *) %Y A031312 Cf. A005408, A033307. %K A031312 nonn,base,easy %O A031312 1,2 %A A031312 _Clark Kimberling_ %E A031312 More terms from _Stefan Steinerberger_, Apr 14 2006