Square array read by antidiagonals: number of ways a pawn-like piece (with the initial 2-step move forbidden and starting from any square on the back rank) can end at various squares on an infinite chessboard.
A062105
Square array read by antidiagonals: number of ways a pawn-like piece (with the initial 2-step move forbidden and starting from any square on the back rank) can end at various squares on an infinite chessboard.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =3a(5) =5a(6) =1a(7) =3a(8) =8a(9) =13a(10) =1a(11) =3a(12) =9a(13) =22a(14) =35a(15) =1a(16) =3a(17) =9a(18) =26a(19) =61a(20) =96a(21) =1a(22) =3a(23) =9a(24) =27a(25) =75a(26) =171a(27) =267a(28) =1a(29) =3
External references
- oeis: A062105