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%I A068866 #7 Mar 19 2024 03:32:36
%S A068866 1,3,6,10,28,36,45,78,91,105,136,406,465,561,666,703,946,1081,3240,
%T A068866 6555,7260,9045,32640,46971,47586,48828,51360,70876,72390,94395,
%U A068866 319600,719400,903840,914628,4862521,5092836,5112003,5131206,6898755,7108335,9122856
%N A068866 Triangular numbers k*(k+1)/2 such that A068865(k) = k*(k+1)/2.
%Y A068866 Cf. A068855, A068865.
%K A068866 base,nonn
%O A068866 1,2
%A A068866 _Amarnath Murthy_, Mar 13 2002
%E A068866 Missing 36 inserted and more terms from _Sean A. Irvine_, Mar 18 2024

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