66624

Appears in sequences

• Expansion of (phi(x) / f(-x^4))^4 in powers of x where phi(), f() are Ramanujan theta functions.at n=26A227175
• Least k such that there are exactly n ways to choose a set consisting of a different binary index of each binary index of k.at n=9A368184
• Sorted list of positions of first appearances in A368183 (number of sets that can be obtained by choosing a different binary index of each binary index).at n=9A368185