118198

Appears in sequences

• a(1)=1. a(n) = a(n-1) + (sum of terms, from among terms a(1) through a(n-1), which are prime or 1).at n=25A104589
• a(n) = 2 * A285917(n) for n >=2, a(0) = a(1) = 0.at n=16A120672