Number of length 3+4 0..n arrays with no disjoint pairs in any consecutive five terms having the same sum.
A247407
Number of length 3+4 0..n arrays with no disjoint pairs in any consecutive five terms having the same sum.
Terms
- a(0) =0a(1) =40a(2) =340a(3) =3200a(4) =17164a(5) =65500a(6) =201172a(7) =553328a(8) =1328468a(9) =2988588a(10) =6174668a(11) =12011408a(12) =22100648a(13) =39018756a(14) =66002280a(15) =108120340a(16) =171569292a(17) =265248372a(18) =399981360a(19) =590794408a(20) =854909260a(21) =1216187576a(22) =1701586288a(23) =2346377932
External references
- oeis: A247407