84737

Properties

Appears in sequences

• Number of chord diagrams of degree n with an isolated chord of length 1.at n=7A018193
• Primes of the form 512n+257.at n=27A105131
• T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.at n=47A264676
• Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.at n=7A264678
• Binomial transform of A015128.at n=11A266497
• a(n) is the least prime p such that the orderly concatenation of the n successive powers of p yields a prime number; a(n)=0 if n is a multiple of 6.at n=19A292163
• a(1) = 2; for n > 1, a(n) is the least prime p not already in the sequence such that the Hamming distance between p and a(n-1) is 1.at n=23A294205
• Primes of the form (p*q+r*s)/2, where p,q,r,s are consecutive primes.at n=11A340307
• Prime numbersat n=8258