77792

Appears in sequences

• Expansion of (eta(q) * eta(q^9))^12 in powers of q.at n=27A034436
• n*10^5-1, n*10^5-3, n*10^5-7 and n*10^5-9 are all prime.at n=12A064979
• Number of numbers k which give 1 after applying exactly n iterations of the 3k+1 algorithm (if a number is even, divide it by 2; if it is odd, multiply by 3 and add 1). This total includes numbers k which also give 1 for a smaller number of iterations (i.e., for this sequence we do not assume the algorithm halts when 1 is reached).at n=47A082538
• a(n) = 2*(n-1)*Catalan(n).at n=8A246574
• Number of length 1+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.at n=15A249291
• T(n, m), numerators of coefficients in a power/Fourier series expansion of the plane pendulum's exact differential time dependence.at n=43A274076
• a(n) is the index of the first occurrence of n in A331284.at n=36A331285
• G.f.: Product_{k>=1} (1 + x^(3*k^2)) / (1 - x^k).at n=41A385010