The **data** to produce initial conditions a 0 = 1/6, b 0 = 1, x 0 = 1/256 and limiting value lim n→∞ a n = 2 3π .
a 0 − 1 2π ≈ 9.08 × 10 −2 ,a
Another option is to use the series [8, Table 6, N = 7] .