130103

Appears in sequences

• a(n)/100000 gives log_10(n) to 5 places.at n=19A027665
• Number of binary strings of length n with equal numbers of 01010 and 10001 substrings.at n=18A164262
• Expansion of A(x) satisfying A(x) = Series_Reversion( x - x^3 * A'(x)/A(x) ).at n=7A360579