A001153 - cp's OEIS frontend

A001153 Degrees of primitive irreducible trinomials: n such that 2^n - 1 is a Mersenne prime and x^n + x^k + 1 is a primitive irreducible polynomial over GF(2) for some k with 0 < k < n.

n	a(n)
1	2
2	3
3	5
4	7
5	17
6	31
7	89
8	127
9	521
10	607
11	1279
12	2281
13	3217
14	4423
15	9689
16	19937
17	23209
18	44497
19	110503
20	132049
21	756839
22	859433
23	3021377
24	6972593
25	24036583
26	25964951
27	30402457
28	32582657
29	42643801
30	43112609

[2, 3, 5, 7, 17, 31, 89, 127, 521, 607, 1279, 2281, 3217, 4423, 9689, 19937, 23209, 44497, 110503, 132049, 756839, 859433, 3021377, 6972593, 24036583, 25964951, 30402457, 32582657, 42643801, 43112609]

cp's OEIS Frontend

A001153 Degrees of primitive irreducible trinomials: n such that 2^n - 1 is a Mersenne prime and x^n + x^k + 1 is a primitive irreducible polynomial over GF(2) for some k with 0 < k < n.

Table of values

List of values