Powers of cube root of 19 rounded down.

Terms

a(0) =1a(1) =2a(2) =7a(3) =19a(4) =50a(5) =135a(6) =361a(7) =963a(8) =2570a(9) =6859a(10) =18302a(11) =48838a(12) =130321a(13) =347748a(14) =927933a(15) =2476099a(16) =6607226a(17) =17630734a(18) =47045881a(19) =125537306a(20) =334983955a(21) =893871739a(22) =2385208822a(23) =6364695153a(24) =16983563041a(25) =45318967619a(26) =120929207914a(27) =322687697779a(28) =861060384775