Stirling transform of the prime characteristic function.

Terms

a(0) =0a(1) =0a(2) =1a(3) =4a(4) =13a(5) =41a(6) =136a(7) =505a(8) =2171a(9) =10693a(10) =58246a(11) =340242a(12) =2095435a(13) =13492077a(14) =90267633a(15) =623383765a(16) =4414350135a(17) =31899350954a(18) =235002008725