a(n) = 56*2^n + 20*4^n + 35*3^n + 4*6^n + 10*5^n + 7^n + 84.
A254466
a(n) = 56*2^n + 20*4^n + 35*3^n + 4*6^n + 10*5^n + 7^n + 84.
Terms
- a(0) =210a(1) =462a(2) =1386a(3) =5214a(4) =22770a(5) =110022a(6) =571626a(7) =3136014a(8) =17944290a(9) =106156182a(10) =645091866a(11) =4006997214a(12) =25344197010a(13) =162737255142
External references
- oeis: A254466