%I #19 Sep 07 2022 10:03:49
%S 0,0,0,0,0,0,2,2,2,4,2,2,6,6,8,8,14,14,2,2,28,28,6,6,62,62,16,16,126,
%T 126,28,28,112,60,6,6,10,30,2,56,2640,2,4,6,2,4,4,4,2,6,2,2,2,2,6,14,
%U 6,6,2,6,102,6,2,4,18,42,2,2,102,12,42,2,18,12,6
%N Period of oscillator reached starting with a segment of n consecutive live cells and applying the LongLife 2D rule (see comment).
%C LongLife rule : birth occurs if dead cell has 3,4 or 5 neighbors. Survival occurs if live cell has 5 neighbors. (Sequence computed using LifeLab for mac).
%H Rémy Sigrist, <a href="/A086973/a086973.gp.txt">PARI program</a>
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GameofLife.html">Game of Life</a>.
%o (PARI) See Links section.
%Y Cf. A086993 (pre-periodic steps).
%K nonn
%O 1,7
%A _Benoit Cloitre_, Sep 22 2003
%E More terms from _Rémy Sigrist_, Sep 07 2022