76389domain: NAppears in sequencesCrystal ball sequence for D_6 lattice.at n=5A008358Expansion of 1/((1 +x +x^2)^2 *(1 +x^2 +x^3)^3).at n=37A167177Odd numbers n divisible by 3 such that for all k >= 1 the numbers n*2^k + 1 and n*2^(k+1) + 1 do not form a pair of primes.at n=7A243857