From the game of Quod: number of "squares" on an n X n array of points with the four corner points deleted.

A124479

From the game of Quod: number of "squares" on an n X n array of points with the four corner points deleted.

Terms

    a(0) =0a(1) =1a(2) =11a(3) =37a(4) =88a(5) =175a(6) =311a(7) =511a(8) =792a(9) =1173a(10) =1675a(11) =2321a(12) =3136a(13) =4147a(14) =5383a(15) =6875a(16) =8656a(17) =10761a(18) =13227a(19) =16093a(20) =19400a(21) =23191a(22) =27511a(23) =32407a(24) =37928a(25) =44125a(26) =51051a(27) =58761a(28) =67312a(29) =76763

External references