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 A159610 #8 Feb 08 2022 23:13:29 %S A159610 1,3,2,11,11,9,53,53,53,44,309,309,309,309,265,2119,2119,2119,2119, %T A159610 2119,1854,16687,16687,16687,16687,16687,14833,148329,148329,148329, %U A159610 148329,148329,148329,148329,133496 %N A159610 Triangle read by rows, n-th row = n terms of A000255: (1, 3, 11, 53, 309, ...); right border = A000166 starting (1, 2, 9, 44, 265, ...). %C A159610 Row sums = A002469(n+2), representing the game of mousetrap with n cards; where nonzero terms of A002469 start: (1, 5, 31, 203, 1501, ...). A002469(n) = (n-2)*A000255(n-1) + A000166(n). Example 31 = 2*11 + 9 = A002469(4) = 2*A000255(3) + A000166(4). %F A159610 Triangle read by rows, n-th row = n terms of A000255: (1, 3, 11, 53, 309, ...); right border = A000166 starting (1, 2, 9, 44, 265, ...) %e A159610 First few rows of the triangle: %e A159610 1; %e A159610 3, 2; %e A159610 11, 11, 9; %e A159610 53, 53, 53, 44; %e A159610 309, 309, 309, 309, 265; %e A159610 2119, 2119, 2119, 2119, 2119, 1854; %e A159610 16687, 16687, 16687, 16687, 16687, 16687, 14833; %e A159610 ... %Y A159610 Cf. A002469, A000166, A000255. %K A159610 nonn,tabl %O A159610 0,2 %A A159610 _Gary W. Adamson_, Apr 17 2009