%I #5 Aug 13 2017 07:35:41

%S 0,0,1,4,11,25,50,91,153,241,360,525,736,1014,1365,1792,2304,2937,

%T 3684,4585,5632,6831,8217,9835,11659,13723,16060,18673,21576,24858,

%U 28441,32460,36875,41718,47046,52841,59069,65928,73402,81482,90136

%N A290865(n) -(n-1).

%C This is the number of regions in the configuration A290447(n) if we remove the baseline.

%Y Cf. A290447, A290865.

%K nonn

%O 1,4

%A _N. J. A. Sloane_, Aug 13 2017