Number of multisets of free polyominoes that can be constructed from n squares.

A372123

Number of multisets of free polyominoes that can be constructed from n squares.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =10a(4) =24a(5) =68a(6) =200a(7) =652a(8) =2203a(9) =7794a(10) =28182a(11) =103979a(12) =387931a(13) =1461376a(14) =5541033a(15) =21126533a(16) =80897892a(17) =310938666a(18) =1198917744a(19) =4635816939a(20) =17969766349a(21) =69812201957a(22) =271768139230

External references