Number of length 4+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum.
A247730
Number of length 4+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum.
Terms
- a(0) =8a(1) =334a(2) =3424a(3) =21152a(4) =89836a(5) =303924a(6) =860360a(7) =2143214a(8) =4811604a(9) =9963600a(10) =19277184a(11) =35285668a(12) =61579724a(13) =103227698a(14) =167041476a(15) =262183860a(16) =400496168a(17) =597331512a(18) =871946544a(19) =1248604446a(20) =1757018272a(21) =2433781036a(22) =3322847752a(23) =4477336960
External references
- oeis: A247730