A258203 - cp's OEIS frontend

A258203 Natural numbers n that have the property that starting from k = n, the fixed point of the map k -> floor(tan(k)) is strictly positive, and the smallest number encountered during the iteration is also strictly positive.

n	a(n)
1	1
2	4
3	23
4	26
5	45
6	48
7	67
8	70
9	89
10	92
11	105
12	111
13	114
14	127
15	133
16	136
17	149
18	155
19	158
20	171
21	177
22	180
23	183
24	193
25	199
26	202
27	205
28	215
29	221
30	224
31	227
32	243
33	246
34	249
35	265
36	268
37	271
38	290
39	293
40	300
41	312
42	315
43	334
44	337
45	344
46	356
47	359
48	378
49	381
50	400
51	403
52	422
53	425
54	444
55	447
56	460
57	466
58	469
59	482
60	488
61	491
62	504
63	510
64	513

[1, 4, 23, 26, 45, 48, 67, 70, 89, 92, 105, 111, 114, 127, 133, 136, 149, 155, 158, 171, 177, 180, 183, 193, 199, 202, 205, 215, 221, 224, 227, 243, 246, 249, 265, 268, 271, 290, 293, 300, 312, 315, 334, 337, 344, 356, 359, 378, 381, 400, 403, 422, 425, 444, 447, 460, 466, 469, 482, 488, 491, 504, 510, 513]

cp's OEIS Frontend

A258203 Natural numbers n that have the property that starting from k = n, the fixed point of the map k -> floor(tan(k)) is strictly positive, and the smallest number encountered during the iteration is also strictly positive.

Table of values

List of values

n	a(n)
1	1
2	4
3	23
4	26
5	45
6	48
7	67
8	70
9	89
10	92
11	105
12	111
13	114
14	127
15	133
16	136
17	149
18	155
19	158
20	171
21	177
22	180
23	183
24	193
25	199
26	202
27	205
28	215
29	221
30	224
31	227
32	243
33	246
34	249
35	265
36	268
37	271
38	290
39	293
40	300
41	312
42	315
43	334
44	337
45	344
46	356
47	359
48	378
49	381
50	400
51	403
52	422
53	425
54	444
55	447
56	460
57	466
58	469
59	482
60	488
61	491
62	504
63	510
64	513

n	a(n)
1	1
2	4
3	23
4	26
5	45
6	48
7	67
8	70
9	89
10	92
11	105
12	111
13	114
14	127
15	133
16	136
17	149
18	155
19	158
20	171
21	177
22	180
23	183
24	193
25	199
26	202
27	205
28	215
29	221
30	224
31	227
32	243
33	246
34	249
35	265
36	268
37	271
38	290
39	293
40	300
41	312
42	315
43	334
44	337
45	344
46	356
47	359
48	378
49	381
50	400
51	403
52	422
53	425
54	444
55	447
56	460
57	466
58	469
59	482
60	488
61	491
62	504
63	510
64	513

n	a(n)
1	1
2	4
3	23
4	26
5	45
6	48
7	67
8	70
9	89
10	92
11	105
12	111
13	114
14	127
15	133
16	136
17	149
18	155
19	158
20	171
21	177
22	180
23	183
24	193
25	199
26	202
27	205
28	215
29	221
30	224
31	227
32	243
33	246
34	249
35	265
36	268
37	271
38	290
39	293
40	300
41	312
42	315
43	334
44	337
45	344
46	356
47	359
48	378
49	381
50	400
51	403
52	422
53	425
54	444
55	447
56	460
57	466
58	469
59	482
60	488
61	491
62	504
63	510
64	513