a(n) = coefficient of sqrt(6) in the expansion of (2 + sqrt(2) + sqrt(3))^n.
A377112
a(n) = coefficient of sqrt(6) in the expansion of (2 + sqrt(2) + sqrt(3))^n.
Terms
- a(0) =0a(1) =0a(2) =2a(3) =12a(4) =68a(5) =360a(6) =1878a(7) =9716a(8) =50120a(9) =258192a(10) =1329322a(11) =6842396a(12) =35215884a(13) =181237368a(14) =932711806a(15) =4800019332a(16) =24702255760a(17) =127124540448a(18) =654216959826
External references
- oeis: A377112