On a 3 X 3 board, the number of n-move paths for a chess king ending in a given corner square.

A086346

On a 3 X 3 board, the number of n-move paths for a chess king ending in a given corner square.

Terms

    a(0) =1a(1) =3a(2) =18a(3) =80a(4) =400a(5) =1904a(6) =9248a(7) =44544a(8) =215296a(9) =1039104a(10) =5018112a(11) =24227840a(12) =116985856a(13) =564850688a(14) =2727354368a(15) =13168803840a(16) =63584665600a(17) =307013812224

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