Deficit of central binomial coefficients in terms of number of prime factors: a(n) shows how many fewer prime factors the n-th central binomial coefficient has than n!.
A036541
Deficit of central binomial coefficients in terms of number of prime factors: a(n) shows how many fewer prime factors the n-th central binomial coefficient has than n!.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =2a(7) =1a(8) =1a(9) =1a(10) =1a(11) =1a(12) =2a(13) =2a(14) =2a(15) =1a(16) =2a(17) =2a(18) =3a(19) =3a(20) =2a(21) =2a(22) =3a(23) =3a(24) =3a(25) =3a(26) =3a(27) =3a(28) =3a(29) =3
External references
- oeis: A036541