Triangle of generalized Stirling numbers of the lower level of the hierarchy (case m=2).

Terms

a(0) =1a(1) =5a(2) =1a(3) =32a(4) =11a(5) =1a(6) =248a(7) =113a(8) =18a(9) =1a(10) =2248a(11) =1230a(12) =263a(13) =26a(14) =1a(15) =23272a(16) =14534a(17) =3765a(18) =505a(19) =35a(20) =1a(21) =270400a(22) =186992a(23) =55654a(24) =9115a(25) =865a(26) =45a(27) =1a(28) =3479744a(29) =2612000