A064826 - OEIS

%I #2 May 11 2007 03:00:00

%S 211,215,352,381,447,602,660,663,766,807,853,874,1002,1172,1197,1248,

%T 1259,1372,1427,1457,1571,1612,1622,1639,1652,1665,1752,1850,1862,

%U 1927,1996,2047,2152,2245,2297,2302,2332,2351,2415,2472,2497,2506,2523,2618

%N Numbers which are the sum of two pentagonal numbers (A000326) in exactly two different ways.

%C 211 = 176 + 35 = 210+1

%Y A064816, A000326.

%K nonn

%O 1,1

%A Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Oct 23 2001