Search: id:A132057 Results 1-1 of 1 results found. %I A132057 %S A132057 1,28,1,980,56,1,37730,2744,84,1,1531838,130340,5292,112,1,64337196, %T A132057 6136956,299782,8624,140,1,2766499428,288408120,16120314,568008,12740, %U A132057 168,1,121034349975,13561837212,841627332,34401528,956970,17640,196,1 %N A132057 A convolution triangle of numbers obtained from A034904. %C A132057 a(n,1) = A034904(n). a(n,m)=: s2(8; n,m), a member of a sequence of unsigned triangles including s2(2; n,m)=A007318(n-1,m-1) (Pascal's triangle). s2(3;n,m)= A035324(n,m), s2(4; n,m)= A035529(n,m), s2(5; n,m)= A048882(n, m), s2(6; n,m)= A049375; s2(7; n,m)=A092083. %H A132057 W. Lang, On generalizations of Stirling number triangles, J. Integer Seqs., Vol. 3 (2000), #00.2.4. %H A132057 W. Lang, First 10 rows. %F A132057 a(n, m) = 7*(7*(n-1)+m)*a(n-1, m)/n + m*a(n-1, m-1)/n, n >= m >= 1; a(n, m) := 0, n