257543
domain: N
Appears in sequences
- Glaisher's T numbers.at n=3A002439
- Erroneous version of A002439.at n=4A002811
- Array read by antidiagonals: T(k,d) = number of different hyperplanes in d-space with integer coefficients in set {-k,...,-1,0,1,...,k}.at n=32A061559
- A bisection of A002439.at n=1A156176
- Numerator of Euler(n, 1/6).at n=7A156187
- Arithmetic mean of primes on square intervals such that the mean is an integer.at n=32A161348
- Square array T(n, k) = numerator( zeta_r(2*n) * sqrt(A003658(k + 2)) / Pi^(4*n) ), read by antidiagonals, where zeta_r is the Dedekind zeta-function over r and r is the real quadratic field with discriminant A003658(k + 2).at n=23A370412