Numbers of the form (k!*(k+1))/2 with k or (k+1) prime.
A177138
Numbers of the form (k!*(k+1))/2 with k or (k+1) prime.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =60a(4) =360a(5) =2520a(6) =20160a(7) =19958400a(8) =239500800a(9) =3113510400a(10) =43589145600
External references
- oeis: A177138