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Main diagonal of A332357.
6

%I #24 Sep 15 2023 13:41:45

%S 1,5,17,47,105,215,381,649,1029,1563,2257,3209,4385,5925,7793,10053,

%T 12745,16061,19881,24487,29749,35799,42649,50649,59545,69701,80993,

%U 93655,107597,123375,140489,159705,180697,203685,228625,255893,285153,317401,352097,389577

%N Main diagonal of A332357.

%H Lars Blomberg, Scott R. Shannon, N. J. A. Sloane, <a href="http://neilsloane.com/doc/rose_5.pdf">Graphical Enumeration and Stained Glass Windows, 1: Rectangular Grids</a>, (2021). Also arXiv:2009.07918.

%H Scott R. Shannon, <a href="/A332358/a332358.png">Illustration for n = 4</a>.

%H Scott R. Shannon, <a href="/A332358/a332358_1.png">Illustration for n = 5</a>.

%H Scott R. Shannon, <a href="/A332358/a332358_2.png">Illustration for n = 10</a>.

%H Scott R. Shannon, <a href="/A332358/a332358_3.png">Illustration for n = 11</a>.

%F a(n) = A306302(n-1) + 1. [see _Max Alekseyev_'s comment in A306302] - _Andrey Zabolotskiy_, Sep 14 2023

%Y Cf. A332357, A306302.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Feb 11 2020