A343360 - cp's OEIS frontend

A343360 Expansion of Product_{k>=1} (1 + x^k)^(3^(k-1)).

n	a(n)
0	1
1	1
2	3
3	12
4	39
5	138
6	469
7	1603
8	5427
9	18372
10	61869
11	207909
12	696537
13	2328039
14	7762266
15	25826142
16	85749969
17	284171598
18	940027872
19	3104280885
20	10234808334
21	33692547249
22	110753171784
23	363561071175
24	1191860487561
25	3902350627434
26	12761565487173
27	41685086306917
28	136012008938158

[1, 1, 3, 12, 39, 138, 469, 1603, 5427, 18372, 61869, 207909, 696537, 2328039, 7762266, 25826142, 85749969, 284171598, 940027872, 3104280885, 10234808334, 33692547249, 110753171784, 363561071175, 1191860487561, 3902350627434, 12761565487173, 41685086306917, 136012008938158]

cp's OEIS Frontend

A343360 Expansion of Product_{k>=1} (1 + x^k)^(3^(k-1)).

Table of values

List of values