先天八卦次序 Pre-Natal 8-Trigrams Order

繫辭傳曰易有太極是生兩儀兩儀生四象四象生八卦

邵子曰乾一兌二離三震四巽五坎六艮七坤八乾兌離震為陽巽坎艮坤為隂乾兌為太陽離震為少隂巽坎為少陽艮坤為太隂

Xici Zhuan _ctext states:

In (the system of) the Yi (易) there is the Grand Terminus (☯_TAIJI)
which produced the 2 elementary Forms (⚋_YIN and ⚊_YANG)
Those two Forms produced the 4 emblematic Symbols (⚌_MAJOR-YANG, ⚍_MINOR-YIN, ⚎_MINOR-YANG, and ⚏_MAJOR-YIN)
which again produced the 8 Trigrams
The 8 Trigrams served to determine the good and evil (issues of events), and from this determination was produced the (successful prosecution of the) great business (of life).

Shao Yong _wiki states:

次序 _Order	先天八卦 _{Pre Trigrams}	四象 _{Emblematic Symbols}	兩儀 _{Elementary Forms}
一_⑴	乾☰₀₀₀	太陽⚌_{00 MAJOR-YANG}	陽⚊_{0 YANG}
二_⑵	兌☱₀₀₁	太陽⚌_{00 MAJOR-YANG}	陽⚊_{0 YANG}
三_⑶	離☲₀₁₀	少隂⚍_{01 MINOR-YIN}	陽⚊_{0 YANG}
四_⑷	震☳₀₁₁	少隂⚍_{01 MINOR-YIN}	陽⚊_{0 YANG}
五_⑸	巽☴₁₀₀	少陽⚎_{10 MINOR-YANG}	隂⚋_{1 YIN}
六_⑹	坎☵₁₀₁	少陽⚎_{10 MINOR-YANG}	隂⚋_{1 YIN}
七_⑺	艮☶₁₁₀	太隂⚏_{11 MAJOR-YIN}	隂⚋_{1 YIN}
八_⑻	坤☷₁₁₁	太隂⚏_{11 MAJOR-YIN}	隂⚋_{1 YIN}