2^(6*n/5) rounded to nearest integer.

Terms

a(0) =2a(1) =5a(2) =12a(3) =28a(4) =64a(5) =147a(6) =338a(7) =776a(8) =1783a(9) =4096a(10) =9410a(11) =21619a(12) =49667a(13) =114105a(14) =262144a(15) =602249a(16) =1383604a(17) =3178688a(18) =7302707a(19) =16777216a(20) =38543921a(21) =88550677a(22) =203436034a(23) =467373275a(24) =1073741824a(25) =2466810934a(26) =5667243324a(27) =13019906166a(28) =29911889591a(29) =68719476736