%I A042239
%S A042239 1,2,3,5,63,635,7683,8318,16001,40320,2032001,4104322,6136323,
%T A042239 10240645,129024063,1300481275,15734799363,17035280638,
%U A042239 32770080001,82575440640,4161542112001,8405659664642,12567201776643
%N A042239 Denominators of continued fraction convergents to sqrt(645).
%Y A042239 Cf. A042238.
%Y A042239 Sequence in context: A083665 A084839 A103110 this_sequence A029975 A042787 
               A041131
%Y A042239 Adjacent sequences: A042236 A042237 A042238 this_sequence A042240 A042241 
               A042242
%K A042239 nonn,cofr,easy
%O A042239 0,2
%A A042239 N. J. A. Sloane (njas(AT)research.att.com).