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 A145110 #7 May 22 2014 23:29:40 %S A145110 1,2,3,6,5,10,7,13,11,14 %N A145110 Number of elements in the Redheffer matrix that contribute to the Moebius function. %C A145110 a(11) to a(30) are conjectured to be 11, 23, 13, 18, 19, 25, 17, 29, 19, 30, 26, 26, 23, 45, 27, 30, 32, 39, 29, 48. [From _Mats Granvik_, Dec 21 2008] %e A145110 Contribution from _Mats Granvik_, Dec 21 2008: (Start) %e A145110 The contributing elements for a(8) are: %e A145110 0,0,0,0,0,0,0,1 %e A145110 1,1,0,0,0,0,0,0 %e A145110 0,0,1,0,0,0,0,0 %e A145110 1,1,0,1,0,0,0,0 %e A145110 0,0,0,0,1,0,0,0 %e A145110 0,0,0,0,0,1,0,0 %e A145110 0,0,0,0,0,0,1,0 %e A145110 1,1,0,1,0,0,0,0 %e A145110 where rows 8, 4 and 2 are included because they are divisors of 8. The sum of this array is 13, therefore a(8) = 13. (End) %Y A145110 Cf. A008683, A143104. %K A145110 more,nonn %O A145110 1,2 %A A145110 _Mats Granvik_, Oct 02 2008 %E A145110 a(9)-a(10) from _Mats Granvik_, Oct 05 2008 %E A145110 Moved conjectured terms a(11)-a(30) to Comments. - _N. J. A. Sloane_, May 22 2014