A219963 - cp's OEIS frontend

A219963 Numbers which do not reach zero under either of the iterations: x -> floor(sqrt(x)) * (x - floor(sqrt(x))^2) or y -> ceiling(sqrt(y)) * (ceiling(sqrt(y))^2 - y).

n	a(n)
1	2897
2	3159
3	3183
4	4004
5	6335
6	7025
7	8163
8	8237
9	8621
10	9234
11	12204
12	12963
13	13381
14	14340
15	15217
16	16191
17	16438
18	17474
19	17763
20	17972
21	18065
22	18990
23	19677
24	19848
25	20345
26	20803
27	21426
28	21539
29	22022
30	25834
31	26872
32	27175
33	28052
34	28929
35	28996
36	29295
37	30511
38	30991

[2897, 3159, 3183, 4004, 6335, 7025, 8163, 8237, 8621, 9234, 12204, 12963, 13381, 14340, 15217, 16191, 16438, 17474, 17763, 17972, 18065, 18990, 19677, 19848, 20345, 20803, 21426, 21539, 22022, 25834, 26872, 27175, 28052, 28929, 28996, 29295, 30511, 30991]

cp's OEIS Frontend

A219963 Numbers which do not reach zero under either of the iterations: x -> floor(sqrt(x)) * (x - floor(sqrt(x))^2) or y -> ceiling(sqrt(y)) * (ceiling(sqrt(y))^2 - y).

Table of values

List of values