33303

Appears in sequences

• Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,3,1.at n=6A037724
• Numbers having four 3's in base 10.at n=9A043504
• Numbers whose base-8 representation has exactly 6 runs.at n=13A043628
• a(n) is the smallest number k such that A073813(k) = prime(n).at n=43A073814
• Smallest multiple of n using only digits 0 and 3.at n=16A078242
• Smallest multiple of n using only one nonzero digit.at n=50A088599
• a(n) = prime(n)_prime(n).at n=40A122622
• Numbers k such that k and k^2 use only the digits 0, 1, 3, 8 and 9.at n=56A136852
• Triangle T(n, k) = f(n, k) + f(n, n-k) where T(0, 0) = 1 and f(n, k) = 1/(n+1)*Sum_{j=0..k+1} (-1)^(k-j+1)* binomial(n+1, j)*j^n, read by rows.at n=23A155908
• Triangle T(n, k) = f(n, k) + f(n, n-k) where T(0, 0) = 1 and f(n, k) = 1/(n+1)*Sum_{j=0..k+1} (-1)^(k-j+1)* binomial(n+1, j)*j^n, read by rows.at n=25A155908
• Numbers whose decimal expansion contains only 0's and 3's.at n=29A169966
• Numbers k such that 3*R_(k+2) + 5*10^k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=28A257026
• Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two sums of the central column and central row nondecreasing horizontally and vertically.at n=9A258521
• Molien series for invariants of finite Coxeter group D_10 (bisected).at n=42A266773