262224

Appears in sequences

• Consider all integer triples (i,j,k), j >= k>0, with i^3=binomial(j+2,3)+binomial(k+2,3), ordered by increasing i; sequence gives j values.at n=25A054209
• Number of subsets of {1..n} whose elements have the same smallest prime factor.at n=37A339510
• If n = Sum 2^e(k), then a(n) = Sum 2^a(e(k)), with a(0) = 1.at n=44A381957