Number of tilings of a 5 X n rectangle using integer-sided rectangular tiles of equal area.

Terms

a(0) =1a(1) =2a(2) =11a(3) =7a(4) =115a(5) =4a(6) =1225a(7) =7a(8) =15242a(9) =134a(10) =185941a(11) =14a(12) =2342936a(13) =23a(14) =29253223a(15) =3685a(16) =367191322a(17) =63a(18) =4602885566a(19) =109a(20) =57743314072a(21) =109863a(22) =724240366265a(23) =328a(25) =575a(27) =3301910a(29) =1760a(31) =3087