266305

Appears in sequences

• Poincaré series [or Poincare series] of Lie algebra associated with a certain braid group.at n=7A007995
• a(n) = sigma_6(n), the sum of the 6th powers of the divisors of n.at n=7A013954
• Numerator of sum of -6th powers of divisors of n.at n=7A017675
• Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 1,0.at n=6A033118
• Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,0.at n=9A033140
• Sum of n-th powers of divisors of 8.at n=6A034496
• Duplicating binary multipliers; i.e., n+1 1-bits placed 2n bits from each other.at n=3A036213
• Sums of 4 distinct powers of 8.at n=20A038486
• Numbers whose base-8 representation has exactly 7 runs.at n=0A043629
• a(n) = n^6 + n^4 + n^2 + 1.at n=8A059830
• Numbers of the form (4^{mr}-1)/(4^r-1) for positive integers m, r.at n=22A076275
• Numbers of the form (8^{mr}-1)/(8^r-1) for positive integers m, r.at n=13A076287
• Triangular array, read by rows: T(n,k) = Sum_{d|n} d^k, 0 <= k < n.at n=34A082771
• a(n) = floor((n+2)^(n+2)/((n+2)^2-1)).at n=6A089815
• Modulo 2 binomial transform of 8^n.at n=6A100311
• Partial sums of A101351.at n=17A101352
• Pseudoprimes (base-2) equal to product of 4 primes not necessarily distinct.at n=19A112441
• a(n) = ((2n)^(2n) - 1)/((2n+1)*(2n-1)).at n=4A128542
• a(n) = (64^n - 1)/63.at n=4A133853
• Numbers such that the digital sums in base 2, base 4 and base 8 are all equal.at n=14A135124