Modulo 2 binomial transform of 6^n.

Terms

a(0) =1a(1) =7a(2) =37a(3) =259a(4) =1297a(5) =9079a(6) =47989a(7) =335923a(8) =1679617a(9) =11757319a(10) =62145829a(11) =435020803a(12) =2178463249a(13) =15249242743a(14) =80603140213a(15) =564221981491