446688

Appears in sequences

• Heptagonal numbers with only even digits.at n=10A117994
• The discriminant of the characteristic polynomial of the O+ and O- submatrix for spin 3 of the nuclear electric quadrupole Hamiltonian is a perfect square for these values.at n=12A136331
• The first of two consecutive heptagonal numbers the sum of which is equal to the sum of two consecutive primes.at n=11A298465