133705

Appears in sequences

• a(-1)=a(0)=1 and recursively a(n) = prime(n)*(a(n-1)+a(n-2)).at n=6A109365
• Numbers n such that there are a, b with abs(sigma(a) - sigma(b)) = sigma(n) - n and a U b = n, where U is decimal concatenation.at n=30A239563
• Number of pairs (lambda,mu) of partitions lambda of n and mu of three with mu <= lambda (by diagram containment).at n=38A303853
• Number of parts in all partitions of n with largest multiplicity seven.at n=40A320377