A039826 - cp's OEIS frontend

A039826 Largest coefficient in expansion of Product_{i=1..n} (1 + q^i + q^(2i)).

n	a(n)
1	1
2	2
3	3
4	7
5	15
6	36
7	87
8	217
9	549
10	1423
11	3735
12	9911
13	26513
14	71581
15	194681
16	532481
17	1464029
18	4045117
19	11225159
20	31268577
21	87404465
22	245101771
23	689323849
24	1943817227
25	5494808425
26	15568077235
27	44200775239
28	125739619467
29	358347118257
30	1022994133467
31	2925044957099
32	8376049588815
33	24018964753341

[1, 2, 3, 7, 15, 36, 87, 217, 549, 1423, 3735, 9911, 26513, 71581, 194681, 532481, 1464029, 4045117, 11225159, 31268577, 87404465, 245101771, 689323849, 1943817227, 5494808425, 15568077235, 44200775239, 125739619467, 358347118257, 1022994133467, 2925044957099, 8376049588815, 24018964753341]

cp's OEIS Frontend

A039826 Largest coefficient in expansion of Product_{i=1..n} (1 + q^i + q^(2i)).

Table of values

List of values