Trick for 51²-59²
51²=26(1²)=2601
52²=27(2²)=2704
53²=28(3²)=2809
54²=29(4²)=2916
55²=30(5²)=3025
56²=31(6²)=3136
57²=32(7²)=3249
58²=33(8²)=3364
59²=34(9²)=3481
51²=26(1²)=2601
52²=27(2²)=2704
53²=28(3²)=2809
54²=29(4²)=2916
55²=30(5²)=3025
56²=31(6²)=3136
57²=32(7²)=3249
58²=33(8²)=3364
59²=34(9²)=3481
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