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(来自的问候整数序列在线百科全书!)

A000345号作为一个简单的表

n个 a(n)
1
4 5
5 22
6 71
7 186
8 427
9 888
10 1704
11 3053
12 5203
13 8476
14 13318
15 20265
16 29946
17 43254
18 61171
19 84832
20 115713
21 155382
22 205779
23 269065
24 347906
25 445001
26 563685
27 707637
28 881042
29 1088339
30 1335019
31 1626233
32 1968701
33 2369320
34 2835467
35 3375820
36 3999234
37 4715586
38 5535965
39 6472005
40 7536195
41 8742102
42 10105163
43 11640190
44 13365254
45 15298155
46 17458190
47 19866739
48 22546131
49 25519743
50 28813410
51 32453730
52 36469433
53 40890672
54 45749944
55 51081147
56 56919908
57 63304577
58 70275008
59 77873381
60 86145156
61 95134772
62 104893757
63 115473250
64 126926418
65 139311512
66 152687434
67 167115830
68 182663928
69 199398527
70 217392226
71 236717247
72 257454630
73 279683011
74 303488723
75 328959602
76 356186407

[1,5,22,71,186,427,888,1704,3053,5203,8476,13318,20265,29946,43254,61171,84832,115713,155382,205779,269065,347906,445001,563685,707637,881042,1088339,1335019,1626233,1968701,2369320,2835467,3375820,3999234,4715586,5535965,6472005,7536195,8742102,10105163,11640190,13365254,15298155,17458190,19866739,22546131,25519743,28813410,32453730,36469433,40890672,45749944,51081147,56919908,63304577,70275008,77873381,86145156,95134772,104893757,115473250,126926418,139311512,152687434,167115830,182663928,199398527,217392226,236717247,257454630,279683011,303488723,328959602,356186407]

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上次修改时间:美国东部夏令时2024年6月21日15:16。包含373552个序列。(在oeis4上运行。)