Mrs. Perkins's quilt: smallest coprime dissection of n X n square.

Terms

a(0) =1a(1) =4a(2) =6a(3) =7a(4) =8a(5) =9a(6) =9a(7) =10a(8) =10a(9) =11a(10) =11a(11) =11a(12) =11a(13) =12a(14) =12a(15) =12a(16) =12a(17) =13a(18) =13a(19) =13a(20) =13a(21) =13a(22) =13a(23) =14a(24) =14a(25) =14a(26) =14a(27) =14a(28) =14a(29) =15