-2452

Appears in sequences

• Expansion of chi(x^2) / phi(x) in powers of x where phi(), chi() are Ramanujan theta functions.at n=15A246712
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 99", based on the 5-celled von Neumann neighborhood.at n=27A270159