This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A179313 #4 Mar 31 2012 13:23:39 %S A179313 1,1,1,2,2,1,6,4,1,3,1,22,12,4,6,3,4,1,92,44,12,4,18,12,1,8,6,5,1,426, %T A179313 184,44,24,66,36,12,6,24,24,4,10,10,6,1,2146,852,184,88,36,276,132,72, %U A179313 18,12,88,72,24,24,1,30,40,10,12,15,7,1,11624,4292,852,368,264,1278,552 %N A179313 Triangle T(n,k) read by rows: product of the compositorial weight of the k-th partition of n times A074664(.) applied to each part. %C A179313 Row n has A000041(n) entries. T(n,k) is the product of A074664(a_i) over all parts a_i %C A179313 multiplied by the compositorial weight A048996(n,k) of the k-th partition (Abramowitz-Stegun order) %C A179313 of n = sum_i a_i. %C A179313 Summing also over the partitions with a common number of parts would create A127743. %C A179313 In row n=4, for example, the partitions 3+1 and 2+2, each with 2 parts, are represented by %C A179313 T(4,2)=4 and T(4,3)= 1 here, and the sum 4+1=5 of the entries is the single entry A127743(4,.). %C A179313 In this sense, the table is a refinement of A127743. %D A179313 M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions, p. 831 %F A179313 T(n,k) = A048996(n,k) * A179380(n,k). %F A179313 sum_{k=1..A000041(n)} T(n,k) = A000110(n). %e A179313 T(6,3) represents the 3rd partition of 6, namely 2+4. A074664(2)*A074664(4) = 1*6 is multiplied %e A179313 by the weight A048996([2,4]) = 2!/1!/1! =2, and T(6,3) =1*6*2=12. %e A179313 T(6,5) represents the 5th partition of 6, namely 1+1+4. A074664(1)*A074664(1)*A074664(4) = 1*1*6 is multiplied %e A179313 by the weight A048996([1,1,4]) = 3!/2!/1! =3, and T(6,5) =1*1*6*3. %e A179313 T(7,6) represents the 6th partition of 7, namely 1+2+4. A074664(1)*A074664(2)*A074664(4) = 1*1*6 is multiplied %e A179313 the weight A048996([1,2,4]) = 3!/1!/1!/1! =6, and T(7,6) =1*1*6*6. %e A179313 The triangle starts %e A179313 1; %e A179313 1,1; %e A179313 2,2,1; %e A179313 6,4,1,3,1; %e A179313 22,12,4,6,3,4,1; %e A179313 92,44,12,4,18,12,1,8,6,5,1; %e A179313 426,184,44,24,66,36,12,6,24,24,4,10,10,6,1; %Y A179313 Cf. A000041, A127743 %K A179313 nonn,tabf %O A179313 1,4 %A A179313 _Alford Arnold_, Jul 11 2010 %E A179313 Edited and extended by _R. J. Mathar_, Jul 16 2010