-847

Appears in sequences

• Expansion of x/(1+x-x^3-x^5-x^6-x^7-x^9+x^11+x^12).at n=38A143606
• Inverse binomial transform of A144472.at n=9A145593
• Riordan array (2c(-x)-1, xc(-x)^3), c(x) the g.f. of A000108.at n=22A159971
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 157", based on the 5-celled von Neumann neighborhood.at n=15A270332
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 457", based on the 5-celled von Neumann neighborhood.at n=19A272283
• Solution to a(1) = 1 and Sum_y Product_i a(y_i) = 0 for each n > 1, where the sum is over all relatively prime or monic partitions of n.at n=56A302917
• Increasingly larger (in absolute value) extrema of the Mertens function A002321 between subsequent zeros.at n=28A304242
• Numerators of Dirichlet inverse of fraction A003961(n) / sigma(n).at n=48A354827