A055097 Number of divisors for each term in the triangle A055096. It is 2 for primes (all of the form 4k+1).

2, 4, 2, 2, 6, 3, 4, 2, 4, 2, 2, 8, 6, 6, 2, 6, 2, 4, 4, 4, 4, 4, 6, 2, 10, 2, 9, 2, 4, 4, 12, 2, 4, 6, 8, 4, 2, 8, 2, 6, 4, 8, 2, 6, 2, 4, 4, 8, 2, 4, 2, 8, 4, 4, 4, 4, 6, 6, 12, 3, 18, 2, 10, 9, 6, 4, 8, 2, 4, 4, 4, 4, 4, 2, 8, 2, 8, 2, 2, 12, 4, 6, 4, 8, 6, 12, 2, 8, 2, 12, 4, 4, 2, 12, 2, 8, 6, 4, 3