cp's OEIS Frontend

A099532 Lesser of a,b where n^2 = a^3 + b^3; a,b > 0 and gcd(a,b)=1. The greater of a,b is the corresponding term in A099533 and n, which is used to order this sequence, is the corresponding term in A099426.

%I A099532 #14 Oct 19 2019 03:20:24
%S A099532 1,11,56,57,217,242,305,851,23,122,592,1706,1376,1001,2257,1960,193,
%T A099532 781,889,1729,3071,2920,5896,1346,2137,2184,1633,8313,7034,1953,7379,
%U A099532 9097,6104,10712,4097,12369,7082,12265,13441,15709,18314,5833,8792,8929,3641
%N A099532 Lesser of a,b where n^2 = a^3 + b^3; a,b > 0 and gcd(a,b)=1. The greater of a,b is the corresponding term in A099533 and n, which is used to order this sequence, is the corresponding term in A099426.
%H A099532 Donovan Johnson, <a href="/A099532/b099532.txt">Table of n, a(n) for n = 1..300</a>
%e A099532 a(2) is 11 because term A099426(2) is 228, 228^2 = 11^3 + 37^3 and 11 < 37.
%o A099532 (PARI) for(s=2,1e5,for(x=1,s\2,my(y=s-x);if(gcd(x,y)>1,next); if(issquare(x^3+y^3), print1(x", ")))) \\ _Charles R Greathouse IV_, Nov 06 2014
%Y A099532 Cf. A099426, A099533.
%K A099532 nonn
%O A099532 1,2
%A A099532 _Hans Havermann_, Oct 20 2004