-1836

Appears in sequences

• (1/18)*Difference between concatenation of n and n^2 and concatenation of n^2 and n.at n=23A055435
• Expansion of (1-x)/(1+2*x+2*x^2-x^3).at n=14A078068
• Expansion of q * chi(-q) / chi(-q^5)^5 in powers of q where chi() is a Ramanujan theta function.at n=46A095813
• Expansion of f(q, q^3)^2 / (f(q, q^4) * f(q^2, q^3)) in powers of q where f(, ) is the Ramanujan general theta function.at n=47A138522
• Expansion of u1 * (u1 + u4) * (u1^2 - 2 * u1 * u4 - u4^2) / eta(q^2)^4 in powers of q where u1 = eta(q)^8 and u4 = 32 * eta(q^4)^8.at n=2A226010
• Expansion of g.f.: (-1 + sqrt(1+12*x+48*x^2)) / (6*x).at n=6A240880
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 195", based on the 5-celled von Neumann neighborhood.at n=25A270692