Partition numbers of the form 5k.

Terms

a(0) =5a(1) =15a(2) =30a(3) =135a(4) =385a(5) =490a(6) =1255a(7) =1575a(8) =3010a(9) =4565a(10) =12310a(11) =26015a(12) =31185a(13) =75175a(14) =173525a(15) =386155a(16) =715220a(17) =831820a(18) =1121505a(19) =1741630a(20) =2323520a(21) =3087735a(22) =3554345a(23) =4697205a(24) =7089500a(25) =13848650a(26) =20506255a(27) =26543660a(28) =49995925a(29) =92669720