Number of integer-sided pentagons having perimeter n, modulo rotations but not reflections.

Terms

a(0) =1a(1) =1a(2) =3a(3) =6a(4) =13a(5) =21a(6) =37a(7) =51a(8) =84a(9) =108a(10) =166a(11) =203a(12) =294a(13) =350a(14) =486a(15) =566a(16) =759a(17) =867a(18) =1133a(19) =1276a(20) =1631a(21) =1815a(22) =2275a(23) =2509a(24) =3094a(25) =3386a(26) =4116a(27) =4473a(28) =5372a(29) =5804