A235042 - cp's OEIS frontend

A235042 Factorization-preserving bijection from GF(2)[X]-polynomials to nonnegative integers, version which fixes the elements that are irreducible in both semirings.

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	9
6	6
7	7
8	8
9	21
10	18
11	11
12	12
13	13
14	14
15	27
16	16
17	81
18	42
19	19
20	36
21	49
22	22
23	39
24	24
25	5
26	26
27	63
28	28
29	33
30	54
31	31
32	32
33	93
34	162
35	91
36	84
37	37
38	38
39	99
40	72
41	41
42	98
43	15
44	44
45	189
46	78
47	47
48	48
49	77
50	10
51	243
52	52
53	57
54	126
55	17
56	56
57	117
58	66
59	59
60	108
61	61
62	62
63	147
64	64
65	441

[0, 1, 2, 3, 4, 9, 6, 7, 8, 21, 18, 11, 12, 13, 14, 27, 16, 81, 42, 19, 36, 49, 22, 39, 24, 5, 26, 63, 28, 33, 54, 31, 32, 93, 162, 91, 84, 37, 38, 99, 72, 41, 98, 15, 44, 189, 78, 47, 48, 77, 10, 243, 52, 57, 126, 17, 56, 117, 66, 59, 108, 61, 62, 147, 64, 441]

cp's OEIS Frontend

A235042 Factorization-preserving bijection from GF(2)[X]-polynomials to nonnegative integers, version which fixes the elements that are irreducible in both semirings.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	9
6	6
7	7
8	8
9	21
10	18
11	11
12	12
13	13
14	14
15	27
16	16
17	81
18	42
19	19
20	36
21	49
22	22
23	39
24	24
25	5
26	26
27	63
28	28
29	33
30	54
31	31
32	32
33	93
34	162
35	91
36	84
37	37
38	38
39	99
40	72
41	41
42	98
43	15
44	44
45	189
46	78
47	47
48	48
49	77
50	10
51	243
52	52
53	57
54	126
55	17
56	56
57	117
58	66
59	59
60	108
61	61
62	62
63	147
64	64
65	441

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	9
6	6
7	7
8	8
9	21
10	18
11	11
12	12
13	13
14	14
15	27
16	16
17	81
18	42
19	19
20	36
21	49
22	22
23	39
24	24
25	5
26	26
27	63
28	28
29	33
30	54
31	31
32	32
33	93
34	162
35	91
36	84
37	37
38	38
39	99
40	72
41	41
42	98
43	15
44	44
45	189
46	78
47	47
48	48
49	77
50	10
51	243
52	52
53	57
54	126
55	17
56	56
57	117
58	66
59	59
60	108
61	61
62	62
63	147
64	64
65	441

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	9
6	6
7	7
8	8
9	21
10	18
11	11
12	12
13	13
14	14
15	27
16	16
17	81
18	42
19	19
20	36
21	49
22	22
23	39
24	24
25	5
26	26
27	63
28	28
29	33
30	54
31	31
32	32
33	93
34	162
35	91
36	84
37	37
38	38
39	99
40	72
41	41
42	98
43	15
44	44
45	189
46	78
47	47
48	48
49	77
50	10
51	243
52	52
53	57
54	126
55	17
56	56
57	117
58	66
59	59
60	108
61	61
62	62
63	147
64	64
65	441