A047883 - OEIS

%I #10 Dec 07 2020 02:15:51

%S 0,2,9,20,27,32,39,46,53,60,67,74,81,88,95,102,109,116,123,130,137,

%T 144,151,158,165,172,179,186,193,200,207,214,221,228,235

%N Squares on unbounded chessboard for which the least number of knight's moves from corner (0,0) is n.

%F a(n)=7+a(n-1) for n >= 6.

%t Join[{0,2,9,20,27},NestList[#+7&,32,30]] (* _Harvey P. Dale_, Sep 07 2013 *)

%Y Cf. A098500 (partial sums).

%K nonn

%O 0,2

%A _Clark Kimberling_