-331

Appears in sequences

• Shifts 4 places right under binomial transform.at n=8A010742
• Shifts 4 places left under inverse binomial transform.at n=12A010743
• a(n) = n^2 - primefloor(n)*primeceiling(n).at n=82A056139
• a(n) = mu(n)*prime(n).at n=66A062007
• Expansion of (x^2+1)/(x^4+2*x^3-2*x+1).at n=10A188802
• Expansion of chi(x^3) / chi(x) in powers of x where chi() is a Ramanujan theta function.at n=47A227398
• a(n) = 2*a(n-1) + a(n-2) - 2*a(n-3) - a(n-4) for n>3, a(0)=a(1)=a(3)=0, a(2)=1.at n=14A240847
• Expansion of Sum_{n>=0} x^(n^2-n) / (1 + x^n)^n.at n=55A260148
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 129", based on the 5-celled von Neumann neighborhood.at n=11A270220
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood.at n=13A270912
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 307", based on the 5-celled von Neumann neighborhood.at n=11A271167
• a(n+3) = -a(n+2) - 2*a(n+1) + a(n) with a(0)=3, a(1)=-1, a(2)=-3.at n=11A276228
• a(1) = 1, a(n) = -floor(e*a(n/2)) if n is even, a(n) = n - a(n-1) if n is odd.at n=49A318388
• Expansion of (1/x) * Series_Reversion( x/(1-x-x^4) ).at n=11A366086
• a(n) is the numerator of the real part of Product_{k=1..n} (1/k + i) where i is the imaginary unit.at n=6A370547