a(n) = 3*a(n-1) + 24*a(n-2) + a(n-3), with a(0)=a(1)=1, and a(2)=19.
A217052
a(n) = 3*a(n-1) + 24*a(n-2) + a(n-3), with a(0)=a(1)=1, and a(2)=19.
Terms
- a(0) =1a(1) =1a(2) =19a(3) =82a(4) =703a(5) =4096a(6) =29242a(7) =186733a(8) =1266103a(9) =8309143a(10) =55500634a(11) =367187437a(12) =2441886670a(13) =16193659132a(14) =107553444913a(15) =713750040577
External references
- oeis: A217052