26827

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 15 ones.at n=35A031783
• Multiplicity of highest weight (or singular) vectors associated with character chi_146 of Monster module.at n=40A034534
• Semiprimes that are the sum of the first n semiprimes for some n.at n=32A092190
• Number of asymmetric solid partitions under mirroring operation.at n=13A096574
• Numbers n such that (2^n+1)^3-2 is prime.at n=6A100900
• a(n) = 8 + floor( (1 + Sum_{j=1..n-1} a(j)) / 2).at n=20A120137
• Smallest number whose seventh power has at least n digits.at n=31A130081
• Numerators of partial sums of the alternating series of inverse central binomial coefficients.at n=6A145375
• Triangle T(n, k, j) = T(n-1, k, j) + T(n-1, k-1, j) + (2*j + 1)*prime(j)*T(n-2, k-1, j) with T(2, k, j) = prime(j) and j = 10, read by rows.at n=16A153655
• Triangle T(n, k, j) = T(n-1, k, j) + T(n-1, k-1, j) + (2*j + 1)*prime(j)*T(n-2, k-1, j) with T(2, k, j) = prime(j) and j = 10, read by rows.at n=19A153655
• Fibonacci sequence with initial terms 10 and 21.at n=16A185691
• Numbers k such that k^8 starts with k itself (in base 10).at n=13A233454
• Composite numbers whose concatenation of their aliquot parts, in descending order, is a palindrome.at n=39A249301
• a(n) = numerator of (1/n^3)*(-1/(n+1) + 16/(n+2) + 3/(4*(2*n+1)) - 81/(4*(2*n+3))), term of a BBP-type series representation of zeta(3) by V. Adamchik and S. Wagon.at n=14A256323
• Semiprimes whose prime factors are of equal binary length and which differ from each other in exactly three bit positions.at n=49A261075