A180267 Prime(2*n+1)!/(60*prime(2*n-1)!).
1, 5544, 148512, 1211364, 5301223200, 67804092195840, 128850876, 8937268342895692800, 4383026968320, 2042765424, 147107459292393600, 40633707301699873935974400, 17158084020, 24300280368
Offset: 1
Examples
a(3)=prime(7)!/prime(5)!/60=355687428096000/39916800/60=148512
Links
- Harvey P. Dale, Table of n, a(n) for n = 1..1000
Crossrefs
Cf. A178614
Programs
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Mathematica
#[[2]]/(60*#[[1]])&/@Partition[Prime[Range[1,31,2]]!,2,1] (* Harvey P. Dale, Mar 05 2017 *)
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PARI
a(n)=prime(2*n+1)!/prime(2*n-1)!/60
Comments