30098

Appears in sequences

• Number of partitions of n which contain their signature as a subpartition.at n=40A118052
• a(n) = 2*a(n-1) + prime(n) - prime(n-1), a(1)=2, where prime(n) denotes the n-th prime.at n=13A125180
• Numbers k such that 2*k^2 + 17 is a square.at n=11A144797
• a(0)=-2, a(1)=3; thereafter a(n) = 2*a(n-1) + a(n-2).at n=12A221172
• Number of partitions of n not containing 2*(number of parts) as a part.at n=38A238488
• Number of (1+1) X (n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.at n=12A250878
• Row sums of A238453.at n=16A272079
• Numbers k such that 7*10^k + 43 is prime.at n=26A274692
• Numbers k such that A003415(k) >= A276086(k) and gcd(k, A003415(k)) = gcd(k, A276086(k)), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.at n=31A369959
• Numbers k such that (A276086(k)/s)^s >= k^(s-1) and A276086(k) <= A003415(k), where A003415 is the arithmetic derivative, A276086 is the primorial base exp-function, and s = bigomega(k).at n=33A370128