24847

Properties

Appears in sequences

• Every suffix prime and no 0 digits in base 9 (written in base 9).at n=47A024784
• Sum of composite numbers between prime p and nextprime(p) is palindromic.at n=24A054266
• Sum of composite numbers between prime p and nextprime(p) is palindromic with restriction 'p + 1 <> sum'.at n=15A054267
• Prime numbers p such that pi(p) + 2*p is a square.at n=20A104783
• Primes of the form 7*x^2 - 5*y^2, where x and y are successive natural numbers.at n=38A176557
• Primes that are the average of the members of emirp pairs.at n=20A178581
• Nonpalindromic primes that are the average of the members of emirp pairs.at n=12A178585
• Number of 1X5 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2*n^2 (number of collections of 1 zero-sum 5-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=23A192692
• Primes of the form 3n^2 + 4.at n=20A201477
• Number of partitions of n into distinct parts with boundary size 8.at n=39A227565
• Primes p with same last two digits as k, where prime(k) = p.at n=28A232102
• Primes of the form 25*n^2 + 25*n + 47.at n=24A281437
• Triangle read by rows: T(m,n) is the label of the largest square that an (m,n)-leaper (a generalization of a chess knight) reaches before it can no longer move, starting on a board with squares spirally numbered, starting at 1; 1 <= n < m. Each move is to the lowest-numbered unvisited square.at n=32A306197
• E.g.f. satisfies A(x) = exp( x * exp(x^2/2) * A(x) ).at n=6A362660
• E.g.f. satisfies A(x) = exp(x^3 + x * A(x)).at n=6A362691
• Lesser of 2 successive primes (k, k+4) sandwiching 3 consecutive nonsquarefree numbers.at n=16A366352
• Primes having only {2, 4, 7, 8} as digits.at n=36A386157
• Number of platypus graphs on n vertices.at n=11A392591
• Prime numbersat n=2747