A023859 - cp's OEIS frontend

A023859 a(n) = 1t(n) + 2t(n-1) + ... + k*t(n+1-k), where k=floor((n+1)/2), and t = A023532.

n	a(n)
1	1
2	0
3	1
4	3
5	5
6	4
7	7
8	6
9	9
10	13
11	18
12	17
13	23
14	21
15	27
16	25
17	32
18	40
19	49
20	47
21	56
22	54
23	64
24	62
25	73
26	71
27	82
28	94
29	107
30	105
31	119
32	117
33	132
34	130
35	145
36	142
37	158
38	155
39	172
40	190
41	209
42	207
43	227
44	224
45	244
46	241
47	262
48	259
49	281
50	278
51	301
52	298
53	322
54	346
55	371
56	368
57	394
58	391
59	418
60	415
61	443
62	440
63	469
64	466

[1, 0, 1, 3, 5, 4, 7, 6, 9, 13, 18, 17, 23, 21, 27, 25, 32, 40, 49, 47, 56, 54, 64, 62, 73, 71, 82, 94, 107, 105, 119, 117, 132, 130, 145, 142, 158, 155, 172, 190, 209, 207, 227, 224, 244, 241, 262, 259, 281, 278, 301, 298, 322, 346, 371, 368, 394, 391, 418, 415, 443, 440, 469, 466]

cp's OEIS Frontend

A023859 a(n) = 1t(n) + 2t(n-1) + ... + k*t(n+1-k), where k=floor((n+1)/2), and t = A023532.

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	3
5	5
6	4
7	7
8	6
9	9
10	13
11	18
12	17
13	23
14	21
15	27
16	25
17	32
18	40
19	49
20	47
21	56
22	54
23	64
24	62
25	73
26	71
27	82
28	94
29	107
30	105
31	119
32	117
33	132
34	130
35	145
36	142
37	158
38	155
39	172
40	190
41	209
42	207
43	227
44	224
45	244
46	241
47	262
48	259
49	281
50	278
51	301
52	298
53	322
54	346
55	371
56	368
57	394
58	391
59	418
60	415
61	443
62	440
63	469
64	466

n	a(n)
1	1
2	0
3	1
4	3
5	5
6	4
7	7
8	6
9	9
10	13
11	18
12	17
13	23
14	21
15	27
16	25
17	32
18	40
19	49
20	47
21	56
22	54
23	64
24	62
25	73
26	71
27	82
28	94
29	107
30	105
31	119
32	117
33	132
34	130
35	145
36	142
37	158
38	155
39	172
40	190
41	209
42	207
43	227
44	224
45	244
46	241
47	262
48	259
49	281
50	278
51	301
52	298
53	322
54	346
55	371
56	368
57	394
58	391
59	418
60	415
61	443
62	440
63	469
64	466

cp's OEIS Frontend

A023859 a(n) = 1*t(n) + 2*t(n-1) + ... + k*t(n+1-k), where k=floor((n+1)/2), and t = A023532.

Table of values

List of values

A023859 a(n) = 1t(n) + 2t(n-1) + ... + k*t(n+1-k), where k=floor((n+1)/2), and t = A023532.

n	a(n)
1	1
2	0
3	1
4	3
5	5
6	4
7	7
8	6
9	9
10	13
11	18
12	17
13	23
14	21
15	27
16	25
17	32
18	40
19	49
20	47
21	56
22	54
23	64
24	62
25	73
26	71
27	82
28	94
29	107
30	105
31	119
32	117
33	132
34	130
35	145
36	142
37	158
38	155
39	172
40	190
41	209
42	207
43	227
44	224
45	244
46	241
47	262
48	259
49	281
50	278
51	301
52	298
53	322
54	346
55	371
56	368
57	394
58	391
59	418
60	415
61	443
62	440
63	469
64	466