24222

Appears in sequences

• Number of 2's in all partitions of n.at n=33A024786
• Areas of a sequence of right-angled figures described below.at n=21A058195
• Number of occurrences of smallest prime factor in all partitions of n-th composite number: a(n)=A066633(A002808(n), A056608(n)).at n=21A091109
• Least k such that k*(Mersenne_prime(n)^2) + 1 is prime.at n=20A098819
• Numbers n such that prime(n) - n is a prime power.at n=19A109315
• Numbers n such that (5+n!)/5 is prime.at n=19A139058
• Number of compositions of n with exactly eight descents.at n=3A241633
• Numbers k such that (41*10^k + 49)/9 is prime.at n=24A254441
• Numbers with digits 2 and 4 only.at n=38A284920
• a(n) = Sum_{k=0..floor(n/3)} binomial(2*n+k-1,k) * binomial(2*n+k,n-3*k).at n=7A379085