Number of length n+3 0..7 arrays with some disjoint pairs in every consecutive four terms having the same sum.
A247532
Number of length n+3 0..7 arrays with some disjoint pairs in every consecutive four terms having the same sum.
Terms
- a(0) =848a(1) =1616a(2) =3220a(3) =6584a(4) =13668a(5) =29012a(6) =62108a(7) =133716a(8) =288996a(9) =627654a(10) =1366118a(11) =2978172a(12) =6500008a(13) =14206554a(14) =31071490a(15) =67992670a(16) =148845278a(17) =325994076a(18) =714155690a(19) =1564780972a(20) =3429103460a(21) =7515830880a(22) =16474726804a(23) =36114808462
External references
- oeis: A247532