a(n) = 6*a(n-1) - 2*a(n-2) for n>1; a(1)=1, a(2)=6.
A154244
a(n) = 6*a(n-1) - 2*a(n-2) for n>1; a(1)=1, a(2)=6.
Terms
- a(0) =1a(1) =6a(2) =34a(3) =192a(4) =1084a(5) =6120a(6) =34552a(7) =195072a(8) =1101328a(9) =6217824a(10) =35104288a(11) =198190080a(12) =1118931904a(13) =6317211264a(14) =35665403776a(15) =201358000128
External references
- oeis: A154244