a(n)=7*a(n-1)+a(n-2), n>2 ; a(0)=1, a(1)=6, a(2)=42 .
A155196
a(n)=7*a(n-1)+a(n-2), n>2 ; a(0)=1, a(1)=6, a(2)=42 .
Terms
- a(0) =1a(1) =6a(2) =42a(3) =300a(4) =2142a(5) =15294a(6) =109200a(7) =779694a(8) =5567058a(9) =39749100a(10) =283810758a(11) =2026424406a(12) =14468781600a(13) =103307895606a(14) =737624050842
External references
- oeis: A155196