Integer part of n#/((p-11)# 11#), where p=preceding prime to n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =6a(6) =7a(7) =19a(8) =41a(9) =5a(10) =8a(11) =14a(12) =20a(13) =28a(14) =1327a(15) =46a(16) =1a(17) =82a(18) =104a(19) =125a(20) =150a(21) =177a(22) =207a(23) =252a(24) =3a(25) =4a(26) =436a(27) =46741a(28) =52523a(29) =58764