5649505

Appears in sequences

• Cyclotomic polynomials at x=7.at n=20A019325
• Cyclotomic polynomials at x = -7.at n=20A020506
• a(n) = n^8 - n^6 + n^4 - n^2 + 1.at n=7A060892
• a(n) = sigma_4(n^4)/sigma_2(n^4).at n=6A077457