Search: id:A093542
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%I A093542
%S A093542 1,2,4,9,24,76,284,1244,6342,37527,257802,2058644,19145230,207751462,
%T A093542 2634249124,39067322628,677908600818,13763069607754,326806505773540,
%U A093542 9071727194243794
%N A093542 Antidiagonal sums of square array A093541, in which column (k+1) equals 
               the self-convolution of row k.
%o A093542 (PARI) T(n,k)=if(n<0|k<0,0,if(n==0|k==0,1,sum(i=0,n,T(k-1,i)*T(k-1,n-i)))); 
               a(n)=sum(k=0,n,T(n-k,k))
%Y A093542 Cf. A093541, A093543.
%Y A093542 Sequence in context: A141824 A005001 A091151 this_sequence A000667 A131351 
               A091352
%Y A093542 Adjacent sequences: A093539 A093540 A093541 this_sequence A093543 A093544 
               A093545
%K A093542 nonn
%O A093542 0,2
%A A093542 Paul D. Hanna (pauldhanna(AT)juno.com), Mar 30 2004

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