cp's OEIS Frontend

A358314 Triangle T(n,k) read by rows where T(2m - 1,k) = (A051845(2m - 1,k))/(2m - 1) and T(2m,k) = A051845(2m,k)/m for m > 0, k > 0.

%I A358314 #26 Dec 10 2023 09:16:42
%S A358314 1,5,7,9,10,13,15,18,19,97,99,107,111,119,121,147,149,167,173,179,183,
%T A358314 207,211,217,223,241,243,269,271,279,283,373,374,379,381,386,387,409,
%U A358314 410,421,424,428,430,451,453,457,460,471
%N A358314 Triangle T(n,k) read by rows where T(2m - 1,k) = (A051845(2m - 1,k))/(2m - 1) and T(2m,k) = A051845(2m,k)/m for m > 0, k > 0.
%C A358314 The n-th row has n! elements.
%F A358314 T(n,1) = 4*(((n+1)^(n+1)-(n+1))/((n+1)-1)^2-1)/((3-(-1)^n)*n) = A221741(n).
%F A358314 T(n,n!) = 4*((n-1)*(n+1)^(n+1)+1)/((3-(-1)^n)*n^3) = A221740(n).
%e A358314 Triangle begins:
%e A358314        k=1  k=2  k=3 ...
%e A358314   n=1:   1;
%e A358314   n=2:   5,   7;
%e A358314   n=3:   9,  10, ...,  19;
%e A358314   n=4:  97,  99, 107, ..., 283;
%e A358314   n=5: 373, 374, 379, 381, ..., 471;
%e A358314   ...
%Y A358314 Cf. A051845, left edge = A221741, right edge = A221740.
%K A358314 nonn,tabf
%O A358314 1,2
%A A358314 _Alexander R. Povolotsky_, Nov 08 2022