Number of length 6+2 0..n arrays with no pair in any consecutive three terms totalling exactly n.
A246001
Number of length 6+2 0..n arrays with no pair in any consecutive three terms totalling exactly n.
Terms
- a(0) =2a(1) =56a(2) =2308a(3) =23168a(4) =171942a(5) =795144a(6) =3057032a(7) =9401216a(8) =25819210a(9) =62402840a(10) =139927692a(11) =288998016a(12) =566057198a(13) =1047126248a(14) =1862251792a(15) =3175741184a(16) =5253738642a(17) =8416795896a(18) =13163097620a(19) =20070807680a(20) =30009814582a(21) =43960191176
External references
- oeis: A246001