A180651 - OEIS

%I #5 Mar 30 2012 17:22:56

%S 2924,5564,10856,66992,176336,180848,455344,514736,1464592,2947216,

%T 2090656,15334304,18017056,7684672,56598208,1252205632,1762592896,

%U 16929489536,750555392,903709952,4390866176,74279606528,244428598016

%N Irregular triangle in which row n consists of the larger of pairs of amicable numbers of the form 2^n pq, with p and q odd primes.

%C The length of row n is A180335(n). The first number in row n is A180331(n).

%H T. D. Noe, <a href="/A180651/b180651.txt">Rows n=2..24, flattened</a>

%Y Cf. A180650

%K hard,tabf,nonn

%O 2,1

%A _T. D. Noe_, Sep 25 2010