29088

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 85.at n=38A031583
• Numbers n such that 227*2^n-1 is prime.at n=22A050865
• a(n) is the smallest number k such that k^n has the same digits as some other n-th power without leading zeros.at n=13A133208
• Triangle of characteristic polynomials, see Mathematica code.at n=23A158390
• Numbers k such that gcd(k^2, reverse(k^2)) = k.at n=14A175823
• G.f. satisfies: A(x) = (3 + A(x)^3) / (4 - x).at n=6A244594
• The number of overpartitions of n with restricted odd differences.at n=33A260890
• Imaginary part of A000178(n) * Sum_{k=0..n} i^k/k!, where i = sqrt(-1).at n=5A282567
• Solution of the complementary equation a(n) = 2*a(n-1) - a(n-2) + b(n-1) + n, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=42A294872
• Numbers with more than one Collatz tripling step whose odd Collatz trajectory does not contain primes.at n=29A319936
• Numbers m such that the smallest digit in the decimal expansion of 1/m is 3, ignoring leading and trailing 0's.at n=28A352157
• The total length of the base n sequence when starting from 2 and creating the smallest unused prime number, when read in base n, by either removing or adding a single digit, from 0 to n-1, anywhere in the base n value of the previous number. If the base n sequence does not terminate, a(n) = -1.at n=4A389926