Lists of sets of lists.

A084358

Lists of sets of lists.

Terms

    a(0) =1a(1) =1a(2) =5a(3) =37a(4) =363a(5) =4441a(6) =65133a(7) =1114009a(8) =21771851a(9) =478658101a(10) =11692343253a(11) =314170940293

External references