42011
domain: N
Appears in sequences
- G.f. satisfies: A(x) = Sum{n>=0} x^n * A(n*x)^n.at n=7A195068
- Numbers n such that prime(n) + reversal(prime(n)) is a square.at n=38A227371
- Semiprimes whose reversal + 1 is a square.at n=27A245362
- Sum of piles of first n primes: a(n) = Sum(prime(i)*(2*i-1): 1<=i<=n).at n=25A316322
- MM-numbers of labeled simple hypergraphs with no singletons spanning an initial interval of positive integers.at n=36A320463
- MM-numbers of crossing, capturing multiset partitions (with empty parts allowed).at n=30A326259