A109441 - cp's OEIS frontend

A109441 Sorted union of the numbers (k + 1)^2 - 1, (2k + 1)(2k + 1 - 1)/2, (2k)^2, (2k)(2*k - 1)/2 for k >= 0, with duplicates removed.

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	8
7	10
8	15
9	16
10	21
11	24
12	28
13	35
14	36
15	45
16	48
17	55
18	63
19	64
20	66
21	78
22	80
23	91
24	99
25	100
26	105
27	120
28	136
29	143
30	144
31	153
32	168
33	171
34	190
35	195
36	196
37	210
38	224
39	231
40	253
41	255
42	256
43	276
44	300
45	324
46	325
47	351
48	378
49	400
50	406
51	435
52	465
53	484
54	576
55	676
56	784
57	900

[0, 1, 3, 4, 6, 8, 10, 15, 16, 21, 24, 28, 35, 36, 45, 48, 55, 63, 64, 66, 78, 80, 91, 99, 100, 105, 120, 136, 143, 144, 153, 168, 171, 190, 195, 196, 210, 224, 231, 253, 255, 256, 276, 300, 324, 325, 351, 378, 400, 406, 435, 465, 484, 576, 676, 784, 900]

cp's OEIS Frontend

A109441 Sorted union of the numbers (k + 1)^2 - 1, (2k + 1)(2k + 1 - 1)/2, (2k)^2, (2k)(2*k - 1)/2 for k >= 0, with duplicates removed.

Table of values

List of values

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	8
7	10
8	15
9	16
10	21
11	24
12	28
13	35
14	36
15	45
16	48
17	55
18	63
19	64
20	66
21	78
22	80
23	91
24	99
25	100
26	105
27	120
28	136
29	143
30	144
31	153
32	168
33	171
34	190
35	195
36	196
37	210
38	224
39	231
40	253
41	255
42	256
43	276
44	300
45	324
46	325
47	351
48	378
49	400
50	406
51	435
52	465
53	484
54	576
55	676
56	784
57	900

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	8
7	10
8	15
9	16
10	21
11	24
12	28
13	35
14	36
15	45
16	48
17	55
18	63
19	64
20	66
21	78
22	80
23	91
24	99
25	100
26	105
27	120
28	136
29	143
30	144
31	153
32	168
33	171
34	190
35	195
36	196
37	210
38	224
39	231
40	253
41	255
42	256
43	276
44	300
45	324
46	325
47	351
48	378
49	400
50	406
51	435
52	465
53	484
54	576
55	676
56	784
57	900

cp's OEIS Frontend

A109441 Sorted union of the numbers (k + 1)^2 - 1, (2*k + 1)*(2*k + 1 - 1)/2, (2*k)^2, (2*k)*(2*k - 1)/2 for k >= 0, with duplicates removed.

Table of values

List of values

A109441 Sorted union of the numbers (k + 1)^2 - 1, (2k + 1)(2k + 1 - 1)/2, (2k)^2, (2k)(2*k - 1)/2 for k >= 0, with duplicates removed.

n	a(n)
1	0
2	1
3	3
4	4
5	6
6	8
7	10
8	15
9	16
10	21
11	24
12	28
13	35
14	36
15	45
16	48
17	55
18	63
19	64
20	66
21	78
22	80
23	91
24	99
25	100
26	105
27	120
28	136
29	143
30	144
31	153
32	168
33	171
34	190
35	195
36	196
37	210
38	224
39	231
40	253
41	255
42	256
43	276
44	300
45	324
46	325
47	351
48	378
49	400
50	406
51	435
52	465
53	484
54	576
55	676
56	784
57	900