a(n) = 2^(n - 1)*((-1)^(n + 1) + 7*2^n)/3 = 2^(n - 1)*A062092(n).
A370627
a(n) = 2^(n - 1)*((-1)^(n + 1) + 7*2^n)/3 = 2^(n - 1)*A062092(n).
Terms
- a(0) =1a(1) =5a(2) =18a(3) =76a(4) =296a(5) =1200a(6) =4768a(7) =19136a(8) =76416a(9) =305920a(10) =1223168a(11) =4893696a(12) =19572736a(13) =78295040a(14) =313171968a(15) =1252704256a(16) =5010784256a(17) =20043202560a(18) =80172679168a(19) =320690978816
External references
- oeis: A370627