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A362840飞机作为一个简单的表

n个a(n)
2
4
5
65
75
85
97
107
119
127
1311
149
1513
1611
1711
1811
1913
2017
2119
2219
2317
2417
2523
2623
2725
2823
2919
3023
3129
3229
3323
3431
3529
3623
3729
3823
3937
4029
4119
4237
4331
4431
4517
4643
4741
4843
4947
5037
5147
5247
5341
5449
5553
5653
5747
5853
5949
6047
6159
6247
6361
6459
6559
6647
6761
6861
6967
7059
7161
7259

[2,3,3,5,5,5,7,7,9,7,11,9,13,11,11,11,13,17,19,19,17,17,23,23,25,23,19,23,29,29,23,31,29,23,29,23,37,29,19,37,31,31,17,43,41,43,47,37,47,47,41,49,53,53,47,53,49,47,59,47,61,59,59,47,61,61,67,59,61,59]