Number of nontrivially compound perfect squared rectangles of order n up to symmetries of the rectangle and its subrectangles.
A217152
Number of nontrivially compound perfect squared rectangles of order n up to symmetries of the rectangle and its subrectangles.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =1a(13) =9a(14) =46a(15) =191a(16) =781a(17) =3161a(18) =15002
External references
- oeis: A217152