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 A068006 #6 Jan 18 2024 14:58:30 %S A068006 1,2,5,9,17,28,47,72,112,164,242,342,486,668,920,1237,1663,2193,2891, %T A068006 3750,4861,6218,7944,10037,12664,15827,19749,24444,30204,37057,45391, %U A068006 55250,67141,81140,97895,117529,140873,168105,200285,237672,281604 %N A068006 Number of partitions of n into distinct partition numbers. %F A068006 G.f.: Product_{n>=1} (1/(1-x^A000009(n))). %t A068006 CoefficientList[ Series[1/Product[1 - x^PartitionsQ[i], {i, 1, 50}], {x, 0, 50}], x] %Y A068006 Cf. A000009, A007279. %K A068006 nonn %O A068006 0,2 %A A068006 _Robert G. Wilson v_, Feb 11 2002 %E A068006 Offset corrected by _Sean A. Irvine_, Jan 18 2024