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 A222060 #9 Apr 25 2019 04:45:16 %S A222060 0,0,1,0,1,3,0,1,9,11,0,1,21,66,50,0,1,45,275,500,274,0,1,93,990,3250, %T A222060 4110,1764,0,1,189,3311,17500,38360,37044,13068,0,1,381,10626,85050, %U A222060 287700,469224,365904,109584,0,1,765,33275,388500,1904574,4667544,6037416,3945024,1026576,0,1,1533,102630,1705250,11651850,40266828,76839840,82188000,46195920,10628640 %N A222060 Triangle read by rows: coefficients of harmonic-geometric polynomials. %H A222060 Ayhan Dil and Veli Kurt, <a href="https://www.emis.de/journals/INTEGERS/papers/m38/m38.Abstract.html">Polynomials related to harmonic numbers and evaluation of harmonic number series I</a>, INTEGERS, 12 (2012), #A38. %F A222060 The n-th polynomial is Sum_{k=0..n} Stirling2(n,k)*|Stirling1(k+1,2)|*x^k. %e A222060 Triangle begins: %e A222060 [0] %e A222060 [0, 1] %e A222060 [0, 1, 3] %e A222060 [0, 1, 9, 11] %e A222060 [0, 1, 21, 66, 50] %e A222060 [0, 1, 45, 275, 500, 274] %e A222060 [0, 1, 93, 990, 3250, 4110, 1764] %e A222060 [0, 1, 189, 3311, 17500, 38360, 37044, 13068] %e A222060 [0, 1, 381, 10626, 85050, 287700, 469224, 365904, 109584] %e A222060 ... %Y A222060 Row sums give A222058. See A222057 for another version. %K A222060 nonn,tabl %O A222060 0,6 %A A222060 _N. J. A. Sloane_, Feb 08 2013