A124681 a(n) = number of conjugacy classes in PSL_4(prime(n)).
14, 29, 49, 217, 757, 613, 1327, 3661, 6409, 6349, 15457, 13057, 17707, 40789, 53137, 37993, 104581, 57757, 152797
Offset: 1
Programs
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Magma
A124681 := func< n | NumberOfClasses(PSL(4,NthPrime(n))) >;
Extensions
a(5) and a(6) from Klaus Brockhaus, Dec 26 2006 and Oct 09 2010
a(7)..a(14) appended, from running MAGMA for 32 processor hours at U. Newcastle, by Jason Kimberley, Feb 09 2011.
a(15)-a(19) from Robin Visser, Oct 01 2023