A368483 - cp's OEIS frontend

A368483 The degree of polynomials related to Somos-7 sequences. Also for n > 6 the degree of the (n-6)-th involution in a family of involutions in the Cremona group of rank 6 defined by a Somos-7 sequence.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	3
9	4
10	5
11	7
12	9
13	12
14	14
15	16
16	19
17	23
18	26
19	30
20	33
21	37
22	42
23	47
24	51
25	56
26	61
27	67
28	73
29	79
30	84
31	91
32	98
33	105
34	112
35	119
36	126
37	135
38	143
39	151
40	159
41	168
42	177
43	187
44	196
45	205
46	215
47	226
48	236
49	247
50	257
51	268
52	280
53	292
54	303
55	315
56	327
57	340
58	353
59	366

[0, 0, 0, 0, 0, 0, 0, 2, 3, 4, 5, 7, 9, 12, 14, 16, 19, 23, 26, 30, 33, 37, 42, 47, 51, 56, 61, 67, 73, 79, 84, 91, 98, 105, 112, 119, 126, 135, 143, 151, 159, 168, 177, 187, 196, 205, 215, 226, 236, 247, 257, 268, 280, 292, 303, 315, 327, 340, 353, 366]

cp's OEIS Frontend

A368483 The degree of polynomials related to Somos-7 sequences. Also for n > 6 the degree of the (n-6)-th involution in a family of involutions in the Cremona group of rank 6 defined by a Somos-7 sequence.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	3
9	4
10	5
11	7
12	9
13	12
14	14
15	16
16	19
17	23
18	26
19	30
20	33
21	37
22	42
23	47
24	51
25	56
26	61
27	67
28	73
29	79
30	84
31	91
32	98
33	105
34	112
35	119
36	126
37	135
38	143
39	151
40	159
41	168
42	177
43	187
44	196
45	205
46	215
47	226
48	236
49	247
50	257
51	268
52	280
53	292
54	303
55	315
56	327
57	340
58	353
59	366

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	3
9	4
10	5
11	7
12	9
13	12
14	14
15	16
16	19
17	23
18	26
19	30
20	33
21	37
22	42
23	47
24	51
25	56
26	61
27	67
28	73
29	79
30	84
31	91
32	98
33	105
34	112
35	119
36	126
37	135
38	143
39	151
40	159
41	168
42	177
43	187
44	196
45	205
46	215
47	226
48	236
49	247
50	257
51	268
52	280
53	292
54	303
55	315
56	327
57	340
58	353
59	366

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	3
9	4
10	5
11	7
12	9
13	12
14	14
15	16
16	19
17	23
18	26
19	30
20	33
21	37
22	42
23	47
24	51
25	56
26	61
27	67
28	73
29	79
30	84
31	91
32	98
33	105
34	112
35	119
36	126
37	135
38	143
39	151
40	159
41	168
42	177
43	187
44	196
45	205
46	215
47	226
48	236
49	247
50	257
51	268
52	280
53	292
54	303
55	315
56	327
57	340
58	353
59	366