SB 9.15.4

jahnos tu purus tasyātha
 balākaś cātmajo ’jakaḥ
tataḥ kuśaḥ kuśasyāpi
 kuśāmbus tanayo vasuḥ
kuśanābhaś ca catvāro
 gādhir āsīt kuśāmbujaḥ
Synonyms: 
jahnoḥ — of Jahnu; tu — indeed; puruḥ — a son named Puru; tasya — of Puru; atha — thereafter; balākaḥ — a son named Balāka; ca — and; ātmajaḥ — Balāka’s son; ajakaḥ — of the name Ajaka; tataḥ — thereafter; kuśaḥ — Kuśa; kuśasya — of Kuśa; api — then; kuśāmbuḥ — Kuśāmbu; tanayaḥ — Tanaya; vasuḥ — Vasu; kuśanābhaḥ — Kuśanābha; ca — and; catvāraḥ — four (sons); gādhiḥ — Gādhi; āsīt — there was; kuśāmbujaḥ — the son of Kuśāmbu.
Translation: 
The son of Jahnu was Puru, the son of Puru was Balāka, the son of Balāka was Ajaka, and the son of Ajaka was Kuśa. Kuśa had four sons, named Kuśāmbu, Tanaya, Vasu and Kuśanābha. The son of Kuśāmbu was Gādhi.