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 A248009 #22 Oct 12 2014 13:13:13 %S A248009 135,7911,131517,19212325272931,33,35373941,43,45,4749,51,53,5557, %T A248009 596163,65,676971,737577,798183,85,8789,9193,95,9799101103105,107109, %U A248009 111,113,115117119,121123125127129,131133,135,137139,141,143145147,149,151153155157,159 %N A248009 Partition of the positive odd integers into minimal blocks such that the concatenation of the numbers in each block is an evil number (A001969). Sequence lists the evil numbers obtained in this way. %C A248009 The numbers of the consecutive positive odd integers in the blocks of the partition are 3,3,3,7,1,4,1,1,2,1,1,2,3,1,3,3,3,1,2,2,... %H A248009 Peter J. C. Moses, <a href="/A248009/b248009.txt">Table of n, a(n) for n = 1..1000</a> %e A248009 a(1)=135, since 1 and 13 are odious numbers, while 135 is evil. %o A248009 (PARI) lista(nn) = {s = ""; forstep(n=1, nn, 2, ns = concat(s, Str(n)); if ((hammingweight(eval(ns)) % 2) == 0, print1(ns, ", "); s = "", s = ns););} \\ _Michel Marcus_, Oct 09 2014 %Y A248009 Cf. A248138, A248140, A248145, A248146, A248171, A248172. %K A248009 nonn,base %O A248009 1,1 %A A248009 _Vladimir Shevelev_, Oct 05 2014 %E A248009 More terms from _Peter J. C. Moses_, Oct 09 2014