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本帖最后由 cuikun-186 于 2024-1-1 13:24 编辑
4,6,8,10,12,14,16,18,20,22,…
6,9,12,15,18,21,24,27,30,33,…
8,12,16,20,24,28,32,36,40,44,…
10,15,20,25,30,35,40,45,50,55,…
12,18,24,30,36,42,48,54,60,66,…
14,21,28,35,42,49,56,63,70,77,…
………
2+2n,3+3n,4+4n,5+5n,6+6n,7+7n,8+8n,9+9n,10+10n,11+11n,…(n+1)+(n+1)n
该矩阵称为合数等差矩阵 |
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