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例子
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数组的前几行=
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ...
1, 2, 5, 8, 14, 20, 30, 40, 55, 70, ...
1, 2, 5, 10, 18, 30, 49, 74, 110, 158, ...
1, 2, 5, 10, 20, 34, 59, 94, 149, 224, ...
1, 2, 5, 10, 20, 36, 63, 104, 169, 264, ...
1, 2, 5, 10, 20, 36, 65, 108, 179, 284, ...
...
三角形的前几行=
1;
2;
2, 3;
2, 4, 4;
2, 4, 9, 5;
2, 4, 10, 14, 6;
2, 4, 10, 19, 23, 7;
2, 4, 10, 20, 34, 32, 8;
2, 4, 10, 20, 39, 55, 46, 9;
2, 4, 10, 20, 40, 66, 88, 60, 10;
...
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