Number of quadrilateral regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 8.
A332596
Number of quadrilateral regions in a "frame" of size n X n (see Comments in A331776 for definition), divided by 8.
Terms
- a(0) =0a(1) =1a(2) =10a(3) =26a(4) =63a(5) =107a(6) =189a(7) =294a(8) =455a(9) =627a(10) =891a(11) =1202a(12) =1650a(13) =2121a(14) =2719a(15) =3392a(16) =4292a(17) =5239a(18) =6470a(19) =7832a(20) =9463a(21) =11129a(22) =13205a(23) =15460a(24) =18164a(25) =20919a(26) =24130a(27) =27572a(28) =31679a(29) =35945
External references
- oeis: A332596