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 A152207 #12 Apr 14 2021 00:05:58 %S A152207 3007,3070,4015,6013,6103,7102,8110,10171,10234,11071,11134,11215, %T A152207 11251,11260,11503,11710,12007,12025,12142,12205,12214,12250,13051, %U A152207 13231,14014,15031,15211,15310,16030,16102,16120,16300,20143,20206,20341 %N A152207 Numbers k such that (sum of base-2 digits of k) = (sum of base-10 digits of k) = 10. %H A152207 Zak Seidov, <a href="/A152207/b152207.txt">Table of n, a (n) for n = 1 .. 1000</a> %e A152207 a(1000) = 3002410_10 = 1011011101000000101010_2, with digit sums = 10 in both cases. %o A152207 (PARI) isok(n) = (sumdigits(n) == 10) && (hammingweight(n) == 10); \\ _Michel Marcus_, Oct 15 2013 %Y A152207 Cf. A152206, A037308. %K A152207 base,nonn %O A152207 1,1 %A A152207 _Zak Seidov_, Nov 29 2008