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 A255766 #10 Mar 19 2015 11:11:33 %S A255766 1,12,23,133,144,254,364,1464,1475,1585,1695,2795,2905,4005,5105, %T A255766 16105,16116,16226,16336,17436,17546,18646,19746,30746,30856,31956, %U A255766 33056,44056,45156,56156,67156,177156,177167,177277,177387,178487,178597,179697,180797,191797 %N A255766 Partial sums of A255745. %C A255766 Also, this is a row of the square array A255741. %o A255766 (PARI) a(n) = sum(k=1, n, if (k==1, 1, 11*10^(hammingweight(k-1)-1))); %Y A255766 Cf. A005408, A151788, A147562, A151790, A151781, A151792, A151793, A255740, A255741, A255745, A255764, A255765. %K A255766 nonn %O A255766 1,2 %A A255766 _Omar E. Pol_, Mar 05 2015 %E A255766 More terms from _Michel Marcus_, Mar 19 2015