A114698 - cp's OEIS frontend

A114698 Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n then a(n) is the trace of M(n)^(-3).

n	a(n)
1	1
2	18
3	38
4	58
5	78
6	98
7	118
8	138
9	158
10	178
11	198
12	218
13	238
14	258
15	278
16	298
17	318
18	338
19	358
20	378
21	398
22	418
23	438
24	458
25	478
26	498
27	518
28	538
29	558
30	578
31	598
32	618
33	638
34	658
35	678
36	698
37	718
38	738
39	758
40	778
41	798
42	818
43	838
44	858
45	878
46	898
47	918
48	938
49	958
50	978
51	998
52	1018
53	1038

[1, 18, 38, 58, 78, 98, 118, 138, 158, 178, 198, 218, 238, 258, 278, 298, 318, 338, 358, 378, 398, 418, 438, 458, 478, 498, 518, 538, 558, 578, 598, 618, 638, 658, 678, 698, 718, 738, 758, 778, 798, 818, 838, 858, 878, 898, 918, 938, 958, 978, 998, 1018, 1038]

cp's OEIS Frontend

A114698 Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n then a(n) is the trace of M(n)^(-3).

Table of values

List of values