GCD of consecutive terms of the factorial times the alternating harmonic series.

A334958

GCD of consecutive terms of the factorial times the alternating harmonic series.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =12a(6) =12a(7) =48a(8) =144a(9) =1440a(10) =1440a(11) =17280a(12) =17280a(13) =241920a(14) =18144000a(15) =145152000a(16) =145152000a(17) =2612736000a(18) =2612736000a(19) =10450944000a(20) =219469824000

External references