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%I #22 May 02 2020 02:21:18
%S 1,2,6,17,45,114,264,545,1061,2070,3990,7275,12556,20824,33584,52753,
%T 80560,119274,170168,232700,306472,396580,517300,688736,926816,
%U 1241720,1640968,2130448,2710356,3383596,4171788,5120776,6289760,7747928,9582196,11908872,14887792,18732340,23712492,30141180,38341172,48622328,61275752,76578628,94786504,116132688,140870564,169379536,202262720,240326780,284337040,334532714,389976092
%N Number of fixed polyominoes with n cells of which no four are equally spaced on a straight line.
%C a(142) = 36 is the final nonzero term of this sequence. - _Jan Kristian Haugland_, Apr 28 2020
%H Jan Kristian Haugland, <a href="/A065068/a065068.gif">Illustration for n = 142</a> [Cached copy, with permission]
%H J. K. Haugland, <a href="https://arxiv.org/abs/2004.12801">Largest polyomino with no four cells equally spaced on a straight line</a>, arXiv:2004.12801 [math.GM] (2020).
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Polyomino">Polyomino</a>
%F a(n) = 0 for n >= 143. - _Jan Kristian Haugland_, Apr 28 2020
%Y Cf. A001168.
%K nonn
%O 1,2
%A _Jan Kristian Haugland_, Nov 07 2001
%E a(32)-a(53) from Brendan Owen (brendan_owen(AT)yahoo.com), Mar 11, 2002