22666

Appears in sequences

• Decimal part of cube root of a(n) starts with 3: first term of runs.at n=26A034129
• Numbers k such that 10^k + 8*R_k - 5 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=11A102944
• Numbers k such that 6^k - 7 is prime.at n=28A217352
• Number of (n+2) X (3+2) 0..3 arrays with every 3 X 3 subblock row and column sum not 2 3 6 or 7 and every diagonal and antidiagonal sum 2 3 6 or 7.at n=11A251889
• Number of (n+2) X (3+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 2 3 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 2 3 6 or 7.at n=11A252259
• Number of length n arrays of permutations of 0..n-1 with each element moved by -4 to 4 places and the total absolute value of displacements not greater than n.at n=11A263935
• Number of terms of A072873 less than or equal to 10^n.at n=41A267757
• Numbers k such that 7*10^k + 79 is prime.at n=26A282250
• Numbers n with digits 2 and 6 only.at n=37A284632
• Records in A181159.at n=30A306332
• E.g.f. satisfies A(x) = exp( x * (1+x/2) * A(x)^2 ).at n=5A365054