30050

Appears in sequences

• Numbers k such that k | 13^k + 1.at n=30A015963
• T(n,n-2), array T as in A047150.at n=8A047154
• Numbers n such that 9*10^n + 4*R_n + 3 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=11A103099
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 9.at n=43A136891
• Triangle read by rows: T(n,k) is the number of balanced reduced multisystems of weight n with maximum depth and atoms colored using exactly k colors.at n=29A330778
• Intersection of A392605 and A392611.at n=39A392606