31464

Appears in sequences

• Numbers k such that the k-th prime divides the sum of the first k primes.at n=3A024011
• a(n) = binomial(n+5,4) - 1.at n=26A063258
• As a vector, shifts to the left when multiplied by A054521.at n=36A147524
• a(n) = 441*n^2 - 488*n + 135.at n=8A157730
• Numbers k such that the half-open interval (k-5*sqrt(sqrt(k)), k] does not contain primes.at n=4A192319
• Numbers k for which there are no prime numbers in the range (k-4*sqrt(sqrt(k)), k].at n=28A192320
• Number of (w,x,y,z) with all terms in {1,...,n} and w > harmonic mean of {x,y,z}.at n=15A212105
• Sequence of coefficients of x^1 in marked mesh pattern generating function Q_{n,132}^(0,4,0,0)(x).at n=17A212347
• Numbers n such that n^2+1, (n+2)^2+1, (n+6)^2+1, (n+10)^2+1 and (n+12)^2+1 are prime.at n=2A218047
• Number of nX5 0..1 arrays with every element equal to 0, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.at n=7A299518
• Triangle read by rows: T(n,k) is the number of lone-child-avoiding rooted trees with n leaves of exactly k colors.at n=23A319376
• Numbers k such that k and k+1 are both terms in A377209.at n=16A377271