%I #3 May 19 2013 12:18:48
%S 7,37,63,218,547,728,1027,2269,3635,4219,5941,7064,12881,20621,22661,
%T 28063,56079,57167,75500,91656,201283,267995,305208,412614,421874,
%U 496496,917288,1669564,1708625,2631258,3905008,5661251,6657616,6769943
%N Increasing gaps in A038593 (lower terms).
%Y Cf. A038593.
%K nonn
%O 1,1
%A _Jeff Burch_, May 11 2004