Number of cells formed by connecting all the 4n points on the perimeter of an n X n square by straight lines; a(0) = 0 by convention.

A255011

Number of cells formed by connecting all the 4n points on the perimeter of an n X n square by straight lines; a(0) = 0 by convention.

Terms

    a(0) =0a(1) =4a(2) =56a(3) =340a(4) =1120a(5) =3264a(6) =6264a(7) =13968a(8) =22904a(9) =38748a(10) =58256a(11) =95656a(12) =120960a(13) =192636a(14) =246824a(15) =323560a(16) =425408a(17) =587964a(18) =682296a(19) =932996a(20) =1061232a(21) =1327524a(22) =1634488a(23) =2049704a(24) =2227672a(25) =2806036a(26) =3275800a(27) =3810088a(28) =4307520a(29) =5298768

External references