A374933 - cp's OEIS frontend

A374933 Maximum number of squares covered (i.e., attacked) by 2 independent (i.e., non-attacking) queens on an n X n chessboard.

n	a(n)
3	9
4	15
5	23
6	30
7	37
8	44
9	52
10	60
11	68
12	76
13	84
14	92
15	100
16	108
17	116
18	124
19	132
20	140
21	148
22	156
23	164
24	172
25	180
26	188
27	196
28	204
29	212
30	220
31	228
32	236
33	244
34	252
35	260
36	268
37	276
38	284
39	292
40	300
41	308
42	316
43	324
44	332
45	340
46	348
47	356
48	364
49	372
50	380
51	388
52	396
53	404
54	412
55	420

[9, 15, 23, 30, 37, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, 132, 140, 148, 156, 164, 172, 180, 188, 196, 204, 212, 220, 228, 236, 244, 252, 260, 268, 276, 284, 292, 300, 308, 316, 324, 332, 340, 348, 356, 364, 372, 380, 388, 396, 404, 412, 420]

cp's OEIS Frontend

A374933 Maximum number of squares covered (i.e., attacked) by 2 independent (i.e., non-attacking) queens on an n X n chessboard.

Table of values

List of values

n	a(n)
3	9
4	15
5	23
6	30
7	37
8	44
9	52
10	60
11	68
12	76
13	84
14	92
15	100
16	108
17	116
18	124
19	132
20	140
21	148
22	156
23	164
24	172
25	180
26	188
27	196
28	204
29	212
30	220
31	228
32	236
33	244
34	252
35	260
36	268
37	276
38	284
39	292
40	300
41	308
42	316
43	324
44	332
45	340
46	348
47	356
48	364
49	372
50	380
51	388
52	396
53	404
54	412
55	420

n	a(n)
3	9
4	15
5	23
6	30
7	37
8	44
9	52
10	60
11	68
12	76
13	84
14	92
15	100
16	108
17	116
18	124
19	132
20	140
21	148
22	156
23	164
24	172
25	180
26	188
27	196
28	204
29	212
30	220
31	228
32	236
33	244
34	252
35	260
36	268
37	276
38	284
39	292
40	300
41	308
42	316
43	324
44	332
45	340
46	348
47	356
48	364
49	372
50	380
51	388
52	396
53	404
54	412
55	420

n	a(n)
3	9
4	15
5	23
6	30
7	37
8	44
9	52
10	60
11	68
12	76
13	84
14	92
15	100
16	108
17	116
18	124
19	132
20	140
21	148
22	156
23	164
24	172
25	180
26	188
27	196
28	204
29	212
30	220
31	228
32	236
33	244
34	252
35	260
36	268
37	276
38	284
39	292
40	300
41	308
42	316
43	324
44	332
45	340
46	348
47	356
48	364
49	372
50	380
51	388
52	396
53	404
54	412
55	420