-663

Appears in sequences

• Expansion of Product_{m>=1} ((1+q^(2*m-1))/(1+q^(2*m)))^6.at n=12A029843
• G.f. A(x) equals series_reversion(x*F(x))/x where F(x) is the g.f. of A120952; a(2*n) = 0 for n>=1.at n=5A120954
• Values of n such that L(9) and N(9) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=8A226929
• 1-gonal pyramidal numbers.at n=16A254749
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 165", based on the 5-celled von Neumann neighborhood.at n=15A270460
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 189", based on the 5-celled von Neumann neighborhood.at n=13A270680
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 267", based on the 5-celled von Neumann neighborhood.at n=13A271086
• Expansion of 1/(2 - Product_{k>=1} (1 - x^k)).at n=60A307059
• Numerators of coefficients in expansion of (1 + x)^(3/4).at n=6A364661
• a(n) = A369134(n, n).at n=18A369121