165749

Properties

Appears in sequences

• a(1) = 1, a(2n) = smallest prime > (2n-1)-th partial sum of the sequence itself and a(2n+1) = smallest composite number > 2n-th partial sum of the sequence.at n=17A076636
• a(n) = round( 2*Gamma(3 + n/3) + 2^(n/3) ).at n=19A133756
• a(n) is the least integer k requiring any combination of at least n 1's or 2's to build using + and *.at n=24A382685
• Prime numbersat n=15157