Declension table of ?sahasāna

Neuter	Singular	Dual	Plural
Nominative	sahasānam	sahasāne	sahasānāni
Vocative	sahasāna	sahasāne	sahasānāni
Accusative	sahasānam	sahasāne	sahasānāni
Instrumental	sahasānena	sahasānābhyām	sahasānaiḥ
Dative	sahasānāya	sahasānābhyām	sahasānebhyaḥ
Ablative	sahasānāt	sahasānābhyām	sahasānebhyaḥ
Genitive	sahasānasya	sahasānayoḥ	sahasānānām
Locative	sahasāne	sahasānayoḥ	sahasāneṣu

Compound sahasāna -

Adverb -sahasānam -sahasānāt