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a(n) is the number of boards in English Peg Solitaire after n moves from which the winning position can be reached.
1

%I #10 Feb 22 2022 00:40:56

%S 1,4,12,60,292,1292,5012,16628,49236,127964,285740,546308,902056,

%T 1298248,1639652,1841556,1841556,1639652,1298248,902056,546308,285740,

%U 127964,49236,16628,5012,1292,292,60,12,4,1

%N a(n) is the number of boards in English Peg Solitaire after n moves from which the winning position can be reached.

%C After the first 16 terms the next terms are the first 16 terms in decreasing order. - _Omar E. Pol_, Feb 06 2022

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Peg_solitaire">Peg solitaire</a>

%Y Cf. A335656.

%K nonn,fini,full

%O 0,2

%A _Douglas Boffey_, Feb 06 2022