Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A111539
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
%I A111539
%S A111539 1,2,7,34,211,1564,13291,126430,1326211,15184744,188348659,2515991290,
%T A111539 36018842875,550317892372,8940695112331,153950966471734,
%U A111539 2801321782936819,53720913548093344,1083061044893428675
%N A111539 Row sums of triangle A111536.
%o A111539 (PARI) {a(n)=if(n<0,0,sum(k=1,n+1,(matrix(n+k,n+k,m,j,if(m==j,1,if(m==j+1,
               -m+1, -(m-j-1)*polcoeff(log(sum(i=0,m,(i+1)!/1!*x^i)),m-j-1))))^-1)[n+1,
               k]))}
%Y A111539 Cf. A111536.
%Y A111539 Sequence in context: A112916 A145845 A002720 this_sequence A074059 A135882 
               A143740
%Y A111539 Adjacent sequences: A111536 A111537 A111538 this_sequence A111540 A111541 
               A111542
%K A111539 nonn
%O A111539 0,2
%A A111539 Paul D. Hanna (pauldhanna(AT)juno.com), Aug 06 2005

    
page 1

Search completed in 0.001 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 1 13:27 EST 2009. Contains 167806 sequences.


AT&T Labs Research