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 A001624 M4017 N1665 #20 Feb 01 2022 23:34:22 %S A001624 1,5,58,1274,41728,1912112,116346400,9059742176,877746364288, %T A001624 103483282967936,14581464284095744,2419278174185319680, %U A001624 466730664414683625472,103580258158369503481856,26198788829773597178540032 %N A001624 Related to Latin rectangles. %D A001624 S. M. Kerawala, The enumeration of the Latin rectangle of depth three by means of a difference equation, Bull. Calcutta Math. Soc., 33 (1941), 119-127. %D A001624 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A001624 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A001624 S. M. Kerawala, <a href="/A001623/a001623.pdf">The enumeration of the Latin rectangle of depth three by means of a difference equation</a>, Bull. Calcutta Math. Soc., 33 (1941), 119-127. [Annotated scanned copy] %H A001624 <a href="/index/La#Latin">Index entries for sequences related to Latin squares and rectangles</a> %F A001624 a(2) = 1, a(n) = A001626(n) + A001626(n-1) + A001627(n-1) + (n-2)(a(n-1) + A001625(n-1)). - _Sean A. Irvine_, Sep 25 2015 %K A001624 nonn %O A001624 2,2 %A A001624 _N. J. A. Sloane_ %E A001624 More terms from _Sean A. Irvine_, Sep 25 2015