70529

Properties

Appears in sequences

• a(n) = a(n-1) - 2*a(n-2) with a(0) = 2, a(1) = 1.at n=32A002249
• Pierce expansion for 1 / Pi.at n=6A006283
• Number of points in Z^n of norm <= 2.at n=19A055426
• a(n) is the unique odd positive solution y of 2^n = 7x^2 + y^2.at n=31A077021
• Balanced primes of order eleven.at n=25A096703
• Expansion of (1-4x^2)/(1+3x+4x^2).at n=16A128415
• Fajtlowicz p-primes.at n=53A185955
• Expansion of (2 + x + x^2 + x^3 - x^4 - 2*x^5 - 4*x^6 - 8*x^7) / (1 - x^4 + 16*x^8) in powers of x.at n=32A247487
• a(n) = 3*a(n-1) - 4*a(n-2) with a(0) = 2, a(1) = 3.at n=16A247563
• a(n) = 3*a(n-2) - 4*a(n-4) with a(0) = 2, a(1) = 1, a(2) = 3, a(3) = 1.at n=32A247564
• a(n) = (4*n^3 - 6*n^2 + 20*n + 3)/3.at n=38A322597
• Prime numbersat n=6988