Number of espalier polycubes of a given volume in dimension 3.

Terms

a(0) =1a(1) =1a(2) =3a(3) =5a(4) =10a(5) =14a(6) =26a(7) =34a(8) =57a(9) =76a(10) =116a(11) =150a(12) =227a(13) =284a(14) =408a(15) =520a(16) =718a(17) =895a(18) =1226a(19) =1508a(20) =2018a(21) =2487a(22) =3248a(23) =3968a(24) =5160a(25) =6235a(26) =7970a(27) =9653a(28) =12179a(29) =14630