Unsigned 4-Stirling numbers of the first kind.

Terms

a(0) =1a(1) =4a(2) =1a(3) =20a(4) =9a(5) =1a(6) =120a(7) =74a(8) =15a(9) =1a(10) =840a(11) =638a(12) =179a(13) =22a(14) =1a(15) =6720a(16) =5944a(17) =2070a(18) =355a(19) =30a(20) =1a(21) =60480a(22) =60216a(23) =24574a(24) =5265a(25) =625a(26) =39a(27) =1a(28) =604800a(29) =662640