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 A136447 #13 Aug 03 2018 08:14:36 %S A136447 1,2,3,4,5,7,8,9,10,11,13,14,15,16,17,19,21,22,23,25,26,27,29,31,32, %T A136447 33,34,35,37,38,39,41,43,44,45,46,47,49,50,51,52,53,55,57,58,59,61,62, %U A136447 63,64,65,67,68,69,70,71,73,74,75,76,77,79,81,82,83,85,86,87,89,91,92,93,94,95 %N A136447 Numbers which are not pseudoperfect: Complement of A005835. %C A136447 Contains the weird numbers 70, 836, ... (A006037), so is different from the set A005100 of deficient numbers. %C A136447 A065205(a(n)) = A210455(a(n)) = 0. - _Reinhard Zumkeller_, Jan 21 2013 %H A136447 Reinhard Zumkeller, <a href="/A136447/b136447.txt">Table of n, a(n) for n = 1..10000</a> %t A136447 ppQ[n_] := AnyTrue[Subsets[Divisors[n] // Most], Total[#] == n&]; %t A136447 Select[Range[100], Not[ppQ[#]]&] (* _Jean-François Alcover_, Aug 03 2018 *) %o A136447 (Haskell) %o A136447 a136447 n = a136447_list !! (n-1) %o A136447 a136447_list = filter ((== 0) . a210455) [1..] %o A136447 -- _Reinhard Zumkeller_, Jan 21 2013 %Y A136447 Cf. A006037, A005100, A005835, A023196. %K A136447 nonn %O A136447 1,2 %A A136447 _N. J. A. Sloane_, Apr 06 2008 %E A136447 Edited by _M. F. Hasler_, Jul 18 2016