2597175domain: NAppears in sequences-arctan(arcsin(x)-arctanh(x))=1/3!*x^3+15/5!*x^5+495/7!*x^7+28735/9!*x^9...at n=5A013433Numbers with more than one prime factor that do not end in 0 and contain as substrings every maximal prime power dividing them.at n=17A059402