| 示例
|
[0] 1;
[1] 1,,2;
[2] 1,,三,,6;
[3] 1,,第4页,第12页,,18;
[4] 1,,5, 20,,40,,60;
[5] 1,,6, 30,,75,,150,,200;
[6] 1,,7, 42, 126,,315,,525,,700;
[7] 1,,8, 56, 196,,588, 1176,,1960,,2450;
[8] 1,,9、72、288、1008、2352,,4704,,7056,,8820;
[9] 1, 10, 90, 405, 1620, 4320, 10080, 17640, 26460, 31752.
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