26249

Properties

Appears in sequences

• Numbers that are the sum of 9 nonzero 8th powers.at n=34A003387
• Let (p1,p2), (p3,p4) be pairs of twin primes with p1*p2=p3+p4-1; sequence gives values of p1.at n=23A047976
• Primes of the form k^2 + 5.at n=10A056905
• Smaller of twin primes whose middle term is a multiple of A002110(4)=210.at n=20A060230
• Primes p such that p-5 == 0 (mod phi(p-5)).at n=34A067557
• Primes p such that 7 is the largest of all prime factors of the numbers between p and the next prime (cf. A052248).at n=17A080186
• Number of partitions of n such that the set of parts has an even number of elements.at n=42A092306
• Primes in A152535.at n=25A152563
• Larger of 3 consecutive prime numbers such that p1*p2*p3*d1*d2=average of twin prime pairs; p1,p2,p3 consecutive prime numbers; d1(delta)=p2-p1, d2(delta)=p3-p2.at n=21A153411
• a(n) = 42*n^2 - 1.at n=24A158626
• Primes that are the difference between a fourth power and a positive cube.at n=35A161735
• Triangle read by rows in which row n lists n terms, starting with n, such that the difference between successive terms is equal to n^4 - 1 = A123865(n).at n=40A162623
• Triangle read by rows in which row n lists n terms, starting with n^4 + n - 1, such that the difference between successive terms is equal to n^4 - 1 = A123865(n).at n=39A162624
• Lesser of twin primes p1 such that p1+(p2^2-p1^2) and p2+(p2^2-p1^2) are prime numbers.at n=32A174922
• Primes p such that reversal(p) - 13 is a square.at n=28A176371
• Number of (n+1) X 4 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.at n=22A204646
• Lesser twin prime p such that p^2-p-2 is the average of a larger twin prime pair.at n=31A231652
• Number of n X 2 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=29A240756
• Primes p such that p plus the cube of sum of digits of p is a perfect square.at n=13A259418
• Number of set partitions of [n] such that each subset is sum-free.at n=10A288817