Number of polyominoes consisting of 5 regular unit n-gons.

Terms

a(0) =4a(1) =12a(2) =25a(3) =22a(4) =25a(5) =50a(6) =82a(7) =127a(8) =186a(9) =168a(10) =187a(11) =263a(12) =362a(13) =472a(14) =614a(15) =566a(16) =615a(17) =776a(18) =972a(19) =1179a(20) =1437a(21) =1347a(22) =1439a(23) =1711a(24) =2045a(25) =2376a(26) =2786a(27) =2641a(28) =2790a(29) =3204