A132880 - cp's OEIS frontend

A132880 a(n) = A000123( A000975(n-1) ) for n>=1 with a(0)=1, where A000123(n) = number of partitions of 2n into powers of 2 and A000975(n) = n-th number without consecutive equal binary digits.

n	a(n)
0	1
1	1
2	2
3	4
4	14
5	60
6	450
7	4964
8	95982
9	3037948
10	170005730
11	16522010532
12	2882717916878
13	902450057292988
14	514768747418386946
15	537142988843543963620
16	1033976171696917695108270
17	3688322935382700002945333884
18	24514290054855626308893309022498

[1, 1, 2, 4, 14, 60, 450, 4964, 95982, 3037948, 170005730, 16522010532, 2882717916878, 902450057292988, 514768747418386946, 537142988843543963620, 1033976171696917695108270, 3688322935382700002945333884, 24514290054855626308893309022498]

cp's OEIS Frontend

A132880 a(n) = A000123( A000975(n-1) ) for n>=1 with a(0)=1, where A000123(n) = number of partitions of 2n into powers of 2 and A000975(n) = n-th number without consecutive equal binary digits.

Table of values

List of values