A368482 - cp's OEIS frontend

A368482 The degree of polynomials related to Somos-6 sequences. Also for n > 4 the degree of the (n-5)-th involution in a family of involutions in the Cremona group of rank 5 defined by a Somos-6 sequence.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	2
7	3
8	4
9	6
10	8
11	11
12	13
13	16
14	20
15	23
16	27
17	31
18	36
19	41
20	45
21	51
22	57
23	63
24	69
25	75
26	83
27	90
28	97
29	105
30	113
31	122
32	130
33	139
34	149
35	158
36	168
37	178
38	189
39	200
40	210
41	222
42	234
43	246
44	258
45	270
46	284
47	297
48	310
49	324
50	338
51	353
52	367
53	382
54	398
55	413
56	429
57	445
58	462

[0, 0, 0, 0, 0, 0, 2, 3, 4, 6, 8, 11, 13, 16, 20, 23, 27, 31, 36, 41, 45, 51, 57, 63, 69, 75, 83, 90, 97, 105, 113, 122, 130, 139, 149, 158, 168, 178, 189, 200, 210, 222, 234, 246, 258, 270, 284, 297, 310, 324, 338, 353, 367, 382, 398, 413, 429, 445, 462]

cp's OEIS Frontend

A368482 The degree of polynomials related to Somos-6 sequences. Also for n > 4 the degree of the (n-5)-th involution in a family of involutions in the Cremona group of rank 5 defined by a Somos-6 sequence.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	2
7	3
8	4
9	6
10	8
11	11
12	13
13	16
14	20
15	23
16	27
17	31
18	36
19	41
20	45
21	51
22	57
23	63
24	69
25	75
26	83
27	90
28	97
29	105
30	113
31	122
32	130
33	139
34	149
35	158
36	168
37	178
38	189
39	200
40	210
41	222
42	234
43	246
44	258
45	270
46	284
47	297
48	310
49	324
50	338
51	353
52	367
53	382
54	398
55	413
56	429
57	445
58	462

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	2
7	3
8	4
9	6
10	8
11	11
12	13
13	16
14	20
15	23
16	27
17	31
18	36
19	41
20	45
21	51
22	57
23	63
24	69
25	75
26	83
27	90
28	97
29	105
30	113
31	122
32	130
33	139
34	149
35	158
36	168
37	178
38	189
39	200
40	210
41	222
42	234
43	246
44	258
45	270
46	284
47	297
48	310
49	324
50	338
51	353
52	367
53	382
54	398
55	413
56	429
57	445
58	462

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	2
7	3
8	4
9	6
10	8
11	11
12	13
13	16
14	20
15	23
16	27
17	31
18	36
19	41
20	45
21	51
22	57
23	63
24	69
25	75
26	83
27	90
28	97
29	105
30	113
31	122
32	130
33	139
34	149
35	158
36	168
37	178
38	189
39	200
40	210
41	222
42	234
43	246
44	258
45	270
46	284
47	297
48	310
49	324
50	338
51	353
52	367
53	382
54	398
55	413
56	429
57	445
58	462