<entry> <ent_seq>2850385</ent_seq> <k_ele> <keb>階差数列</keb> </k_ele> <r_ele> <reb>かいさすうれつ</reb> </r_ele> <sense> <pos>&n;</pos> <field>&math;</field> <gloss>sequence of differences</gloss> </sense> </entry>