Concatenation of first 3 digits and last 3 digits of n-th even superperfect number A061652(n).

Terms

a(0) =22a(1) =44a(2) =1616a(3) =6464a(4) =409096a(5) =655536a(6) =262144a(7) =107824a(8) =115976a(9) =309056a(10) =811064a(11) =850864a(12) =343576a(13) =265064a(14) =520544a(15) =737504a(16) =223176a(17) =129536a(18) =953496a(19) =142304a(20) =239056a(21) =173776a(22) =140096a(23) =215736a(24) =224376a(25) =201256a(26) =427336a(27) =268104a(28) =260504a(29) =256656