Number of representations of n! - 1 as p*q + p*r + q*r with three odd primes p <= q <= r.
A369242
Number of representations of n! - 1 as p*q + p*r + q*r with three odd primes p <= q <= r.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =2a(6) =1a(7) =3a(8) =11a(9) =24a(10) =53a(11) =176a(12) =339a(13) =1510a(14) =2573a(15) =8323a(16) =29029a(17) =75349a(18) =236111a(19) =974524a(20) =3097327a(21) =11024996
External references
- oeis: A369242