Search: id:A098545
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%I A098545
%S A098545 1,3,7,21,51,148,365,983,2461,6360,15687,39757,97033,240425,582622,
%T A098545 1421273,3409861,8222920,19565707,46680362,110309476,260876036,
%U A098545 612293443,1437616751,3354111156,7823501148,18157700800,42112132458
%N A098545 Row sums of A098546, which has A000041(n) entries per row.
%C A098545 By using multisets (cf. A001700) and multinomials (cf. A005651); A035206 
               and A036038 were used to generate A049009 (Words over signatures). 
               A098346 and A049019 provide another approach to the same end (compare 
               A090657).
%F A098545 a(n) = Sum_{k=1..n} binomial(n, k)*A008284(n, k). - Vladeta Jovovic (vladeta(AT)eunet.rs), 
               Jul 24 2005
%e A098545 A098546 begins
%e A098545 1
%e A098545 1 2
%e A098545 1 3 3
%e A098545 1 4 6 6 4
%e A098545 so a(n) begins 1 3 7 21 ...
%Y A098545 Cf. A000041, A000312.
%Y A098545 Sequence in context: A050614 A036569 A018303 this_sequence A161707 A151267 
               A091489
%Y A098545 Adjacent sequences: A098542 A098543 A098544 this_sequence A098546 A098547 
               A098548
%K A098545 easy,nonn
%O A098545 1,2
%A A098545 Alford Arnold (Alford1940(AT)aol.com), Sep 14 2004
%E A098545 More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 24 2005

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