66441

Appears in sequences

• Number of board-pile polyominoes with n cells.at n=10A001169
• Expansion of e.g.f.: tanh(exp(x) - cos(x)) = x + (2/2!)*x^2 - (1/3!)*x^3 - (24/4!)*x^4 - (123/5!)*x^5 + ...at n=9A013317
• Numbers whose base-3 representation has exactly 11 runs.at n=6A043591
• Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 10.at n=26A043816
• Numbers k such that k and k^2 use only the digits 0, 1, 4, 6 and 8.at n=57A136861
• a(n) = 64*n^3 - 168*n^2 + 148*n - 43.at n=10A160250
• Numbers k such that sum of the divisors of k equals the sum of the reversals of the divisors of k. Numbers with all palindrome divisors are not in the sequence.at n=29A196677
• Numbers k such that 128 * 3^k - 1 is prime.at n=30A384228