Number of square divisors of n!.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =6a(6) =6a(7) =8a(8) =12a(9) =30a(10) =30a(11) =36a(12) =36a(13) =72a(14) =96a(15) =128a(16) =128a(17) =180a(18) =180a(19) =300a(20) =300a(21) =600a(22) =600a(23) =864a(24) =1152a(25) =2304a(26) =2688a(27) =4368a(28) =4368a(29) =5376