Expansion of Product_{k>=1} 1/(1 - x^k)^(k*(3*k-2)).

Terms

a(0) =1a(1) =1a(2) =9a(3) =30a(4) =106a(5) =339a(6) =1106a(7) =3355a(8) =10102a(9) =29358a(10) =83908a(11) =234394a(12) =644286a(13) =1739933a(14) =4631675a(15) =12153197a(16) =31485413a(17) =80576160a(18) =203902261a(19) =510490213a(20) =1265353568a(21) =3106771717a(22) =7559844833a(23) =18239351931a(24) =43650061720a(25) =103657177941a(26) =244346681972a(27) =571930478187