24481

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 3x + 10.at n=17A023310
• Primes that remain prime through 5 iterations of function f(x) = 3x + 10.at n=4A023338
• a(n) = Sum_{k=0..floor(n/2)} T(n-k,k), T given by A026747.at n=19A026757
• a(n) = least prime of the form n*k! + 1.at n=33A057218
• Prime lucky numbers k (from A031157) such that nextprime(k)=nextlucky(k).at n=31A057698
• Number of ways to partition {1,2,...,n} into arithmetic progressions, where in each partition all the progressions have the same common difference and have lengths >= 2.at n=23A072255
• Class 6+ primes.at n=29A081634
• Smallest prime ending a complete Cunningham chain of the second kind (2x-1) of length n.at n=4A110059
• Primes of the form 1+2*n+3*n^2.at n=12A122430
• Primes p such that denominator of Sum_{k=1..p-1} 1/k^2 is a square and denominator Sum_{k=1..p-1} 1/k^3 is a cube and denominator Sum_{k=1..p-1} 1/k^4 is a fourth power.at n=24A127062
• a(n) is n-th prime == 1 (mod 6n).at n=39A138906
• Primes A080478(n)^2 + A080478(n+1)^2.at n=18A139361
• Primes p such that (p+1)/2, (p+2)/3 and (p+3)/4 are also primes.at n=3A163573
• Smallest prime greater than phi^n.at n=20A171969
• Triangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 4.at n=16A176795
• Triangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 4.at n=19A176795
• a(n) = 111*n^2 - 3123*n + 10753.at n=32A211607
• Number of (w,x,y) with all terms in {0,...,n} and 2|w-x| >= max(w,x,y)-min(w,x,y).at n=32A213388
• Smallest prime >= n-th Lucas number.at n=21A218557
• Number of partitions of n such that 2*(greatest part) <= (number of parts).at n=47A237752