N. J. A. Sloane njas at
Mon Jan 1 12:15:32 CET 2001

there was an error in the last term.  here is the current version:

%I A031135
%S A031135 1,2,1,0,2,3,0,6,8,4,63,1,316,42,16,2048,7652,13781,8,24000,11977,
%T A031135 458561,152116956851941670912,1054535,53,26,27,59,4806078,3,35792568,3010349,
%U A031135 2387010102192469724605148123694256128,2,0,43,0
%N A031135 Diagonal sequence: a(n) = n-th term of sequence An.


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