Smooth necklaces with 5 colors.

Terms

a(0) =1a(1) =5a(2) =9a(3) =16a(4) =35a(5) =76a(6) =190a(7) =455a(8) =1156a(9) =2911a(10) =7438a(11) =18992a(12) =48902a(13) =125968a(14) =325975a(15) =845202a(16) =2197690a(17) =5725854a(18) =14951308a(19) =39110371a(20) =102490649a(21) =269002564a(22) =707096093a(23) =1861183847a(24) =4905172383a(25) =12942843424