Number of asymmetrical planar partitions of n: planar partitions (A000219) that when regarded as 3-D objects have no symmetry.

A000785

Number of asymmetrical planar partitions of n: planar partitions (A000219) that when regarded as 3-D objects have no symmetry.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =2a(5) =5a(6) =11a(7) =21a(8) =39a(9) =73a(10) =129a(11) =226a(12) =388a(13) =659a(14) =1100a(15) =1821a(16) =2976a(17) =4828a(18) =7754a(19) =12370a(20) =19574a(21) =30789a(22) =48097a(23) =74725a(24) =115410a(25) =177366a(26) =271159a(27) =412665a(28) =625098a(29) =942932

External references