sankhyena

sāńkhyena of philosophical discussion; BG 13.25
sāńkhyena by the study of Sāńkhya philosophy; SB 4.31.12
yathā-sańkhyena by the same number; SB 5.1.33
sāńkhyena by philosophical speculation; SB 11.12.9
sāńkhyena by analytic study; SB 11.20.22