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 A126064 #20 Apr 04 2020 08:58:52 %S A126064 1,1,2,2,4,4,6,12,12,8,24,48,48,32,16,120,240,240,160,80,32,720,1440, %T A126064 1440,960,480,192,64,5040,10080,10080,6720,3360,1344,448,128,40320, %U A126064 80640,80640,53760,26880,10752,3584,1024,256,362880,725760,725760,483840,241920,96768,32256,9216,2304,512 %N A126064 Triangle read by rows, obtained by multiplying columns of triangle in A094587 by 1,2,4,8,16,... respectively. %C A126064 Also obtained by multiplying the n-th rows of A094587 by the first (n+1) powers of 2: T(n,k) = A094587(n,k) * A059268(n,k), 0 <= k <= n. - _Reinhard Zumkeller_, Jul 05 2012 %H A126064 Reinhard Zumkeller, <a href="/A126064/b126064.txt">Rows n = 0..150 of triangle, flattened</a> %H A126064 Peter Luschny, <a href="http://www.luschny.de/math/seq/variations.html">Variants of Variations</a>. %e A126064 1 %e A126064 1, 2 %e A126064 2, 4, 4 %e A126064 6, 12, 12, 8 %e A126064 24, 48, 48, 32, 16 %e A126064 120, 240, 240, 160, 80, 32 %e A126064 720, 1440, 1440, 960, 480, 192, 64 %e A126064 5040, 10080, 10080, 6720, 3360, 1344, 448, 128 %p A126064 A126064 := proc(n,k) binomial(n,k)*(n-k)!*2^k ; end: for n from 0 to 13 do for k from 0 to n do printf("%d,",A126064(n,k)) ; od: od: # _R. J. Mathar_, Nov 02 2007 %t A126064 m = 9; %t A126064 T = Transpose[2^Range[0, m] Table[n!/k!, {k, 0, m}, {n, 0, m}]]; %t A126064 Table[T[[n+1, k+1]], {n, 0, m}, {k, 0, n}] // Flatten (* _Jean-François Alcover_, Apr 04 2020 *) %o A126064 (Haskell) %o A126064 a126064 n k = a126064_tabl !! n !! k %o A126064 a126064_row n = a126064_tabl !! n %o A126064 a126064_tabl = zipWith (zipWith (*)) a094587_tabl a059268_tabl %o A126064 -- _Reinhard Zumkeller_, Jul 05 2012 %K A126064 nonn,tabl,easy %O A126064 0,3 %A A126064 _N. J. A. Sloane_, Feb 28 2007 %E A126064 More terms from _R. J. Mathar_, Nov 02 2007