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 A276589 #25 Sep 24 2024 14:42:22 %S A276589 1,3,2,11,8,6,49,38,30,24,261,212,174,144,120,1631,1370,1158,984,840, %T A276589 720,11743,10112,8742,7584,6600,5760,5040,95901,84158,74046,65304, %U A276589 57720,51120,45360,40320,876809,780908,696750,622704,557400,499680,448560,403200,362880,8877691,8000882,7219974,6523224,5900520,5343120,4843440,4394880,3991680,3628800 %N A276589 Transpose of A276588. %C A276589 Rows give the successive first differences of A001339. %H A276589 <a href="/index/Fa#facbase">Index entries for sequences related to factorial base representation</a> %e A276589 The top left corner of the array: %e A276589 1, 3, 11, 49, 261, 1631, 11743 %e A276589 2, 8, 38, 212, 1370, 10112, 84158 %e A276589 6, 30, 174, 1158, 8742, 74046, 696750 %e A276589 24, 144, 984, 7584, 65304, 622704, 6523224 %e A276589 120, 840, 6600, 57720, 557400, 5900520, 68019240 %e A276589 720, 5760, 51120, 499680, 5343120, 62118720, 780827760 %e A276589 5040, 45360, 448560, 4843440, 56775600, 718709040, 9778048560 %t A276589 T[r_, c_]:=Sum[Binomial[r, k](1 + c + k)!, {k, 0, r}]; Table[T[r - c, c], {r, 0, 10}, {c, 0, r}] // Flatten (* _Indranil Ghosh_, Apr 11 2017 *) %o A276589 (Scheme) (define (A276589 n) (A276588bi (A025581 n) (A002262 n))) ;; Code for A276588bi given in A276588. %o A276589 (PARI) T(r, c) = sum(k=0, r, binomial(r, k)*(1 + c + k)!); %o A276589 for(r=0, 10, for(c=0, r, print1(T(r - c, c),", ");); print();) \\ _Indranil Ghosh_, Apr 11 2017 %o A276589 (Python) %o A276589 from sympy import binomial, factorial %o A276589 def T(r, c): return sum([binomial(r, k) * factorial(1 + c + k) for k in range(r + 1)]) %o A276589 for r in range(11): print([T(r - c, c) for c in range(r + 1)]) # _Indranil Ghosh_, Apr 11 2017 %Y A276589 Topmost row: A001339. For other rows and columns, see the information given in transpose A276588. %Y A276589 Cf. also A276587. %K A276589 nonn,tabl %O A276589 0,2 %A A276589 _Antti Karttunen_, Sep 19 2016