404040

Appears in sequences

• 4-dimensional figurate numbers: a(n) = (6*n-2)*binomial(n+2,3)/4.at n=34A002419
• a(n+1) = a(n) converted to base 10 from base 5 (written in base 10).at n=7A023383
• Numbers that can be expressed as the difference of the squares of primes in exactly twelve distinct ways.at n=6A092008
• Numbers k such that 2k+1, 4k+1, 6k+1, 8k+1 and 10k+1 are primes.at n=24A124410
• Numbers with prime factorization p*q*r*s*t*u^3 (where p, q, r, s, t, u are distinct primes).at n=23A190378
• Numbers n such that the multiplicative group modulo n is the direct product of 7 cyclic groups.at n=25A272597