A350742 - cp's OEIS frontend

A350742 Sisyphus with squares: a(1) = 1; thereafter, if a(n-1) is even, a(n) = a(n-1)/2; otherwise a(n) = a(n-1) + k^2, where k^2 is the smallest square (starting from 1) that has not yet been added.

n	a(n)
1	1
2	2
3	1
4	5
5	14
6	7
7	23
8	48
9	24
10	12
11	6
12	3
13	39
14	88
15	44
16	22
17	11
18	75
19	156
20	78
21	39
22	139
23	260
24	130
25	65
26	209
27	378
28	189
29	385
30	610
31	305
32	561
33	850
34	425
35	749
36	1110
37	555
38	955
39	1396
40	698
41	349
42	833
43	1362
44	681
45	1257
46	1882
47	941
48	1617
49	2346
50	1173
51	1957
52	2798
53	1399
54	2299
55	3260
56	1630

[1, 2, 1, 5, 14, 7, 23, 48, 24, 12, 6, 3, 39, 88, 44, 22, 11, 75, 156, 78, 39, 139, 260, 130, 65, 209, 378, 189, 385, 610, 305, 561, 850, 425, 749, 1110, 555, 955, 1396, 698, 349, 833, 1362, 681, 1257, 1882, 941, 1617, 2346, 1173, 1957, 2798, 1399, 2299, 3260, 1630]

cp's OEIS Frontend

A350742 Sisyphus with squares: a(1) = 1; thereafter, if a(n-1) is even, a(n) = a(n-1)/2; otherwise a(n) = a(n-1) + k^2, where k^2 is the smallest square (starting from 1) that has not yet been added.

Table of values

List of values