60458

Appears in sequences

• a(n) is the smallest positive d such that the n-th prime is the smallest prime p for which p+d is also prime.at n=31A101042
• A101042 sorted. There exists a prime p for which a(n) is the smallest positive d such that p is the smallest prime where p+d is also prime.at n=39A101043
• Number of permutations of length n which avoid the patterns 1234, 2431, 3421.at n=16A116834
• a(n) = the least integer > n such that r(1)|a(n), r(2)|(a(n)+1), r(3)|(a(n)+2),... and r(n)|(a(n)+n-1), where (r(1),r(2),r(3),...,r(n)) is some permutation of (1,2,3,...,n).at n=19A138588
• Number of squarefree words of length n in a 6-ary alphabet, with new values 0..5 introduced in increasing order.at n=10A215072
• Number of distinct terms in row n of triangle A230871.at n=18A231331