30062

Appears in sequences

• a(n) = A027082(n, 2n-5).at n=9A027092
• Becomes prime after exactly 8 iterations of f(x) = sum of prime factors of x.at n=8A047827
• Becomes prime or 4 after exactly 9 iterations of f(x) = sum of prime factors of x.at n=25A048131
• G.f. A(x) satisfies A(x/A(x)) = 1/(1-x).at n=8A088713
• Sums of 3 distinct primorials.at n=24A177697
• Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=19A254899
• Number of (4+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=21A258557
• Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101.at n=9A260975
• Numbers that are the sum of distinct primorial numbers (A002110) (not including 1).at n=36A290249
• Numbers n such that the arithmetic derivative of A276086(n) is prime.at n=31A328233
• Numbers that are sums of distinct primorial numbers, A002110, and do not have a factor of the form p^p.at n=53A328832
• Numbers k such that A003415(k) >= A276086(k) and gcd(k, A003415(k)) = gcd(k, A276086(k)), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.at n=26A369959
• Numbers k such that (A276086(k)/s)^s >= k^(s-1) and A276086(k) <= A003415(k), where A003415 is the arithmetic derivative, A276086 is the primorial base exp-function, and s = bigomega(k).at n=27A370128
• Sums of three primorials > 1.at n=38A370137
• Array read by downward antidiagonals: A(n,k) = A(n-1,k+1) + Sum_{j=0..k} A(n-1,j)*A(k-j,0) with A(0,k) = 1.at n=35A392095