Search: id:A130667
Results 1-1 of 1 results found.

%I A130667
%S A130667 1,6,11,36,41,66,91,216,221,246,271,396,421,546,671,1296,1301,1326,1351,
%T A130667 1476,1501,1626,1751,2376,2401,2526,2651,3276,3401,4026,4651,7776,7781,
%U A130667 7806,7831,7956,7981,8106,8231,8856,8881,9006,9131,9756,9881,10506,11131
%N A130667 a(1) = 1; a(n) = max { 5*a(k)+a(n-k) | 1 <= k <= n/2 }, for n>1.
%D A130667 D. E. Knuth, Problem submitted to Amer. Math. Monthly, Jun 18 2007.
%F A130667 a(2n)=6a(n) and a(2n+1)=5a(n)+a(n+1).
%Y A130667 Cf. A006046, A116520, A130665.
%Y A130667 Sequence in context: A152987 A100093 A166702 this_sequence A108698 A002570 
               A038265
%Y A130667 Adjacent sequences: A130664 A130665 A130666 this_sequence A130668 A130669 
               A130670
%K A130667 nonn
%O A130667 1,2
%A A130667 N. J. A. Sloane (njas(AT)research.att.com), based on a message from D. 
               E. Knuth, Jun 23 2007

Search completed in 0.001 seconds