A349890 - cp's OEIS frontend

A349890 Triangle read by rows: T(n,k) = n * 2^e(n) - (4^e(n) - 1) / 3 - k * (k - 1) / 2 with e(n) = 1 + floor(log_2(n)) for n >= 1 and 1 <= k <= n.

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	4
7	11
8	10
9	8
10	5
11	19
12	18
13	16
14	13
15	9
16	27
17	26
18	24
19	21
20	17
21	12
22	35
23	34
24	32
25	29
26	25
27	20
28	14
29	43
30	42
31	40
32	37
33	33
34	28
35	22
36	15
37	59
38	58
39	56
40	53
41	49
42	44
43	38
44	31
45	23
46	75
47	74
48	72
49	69
50	65
51	60
52	54
53	47
54	39
55	30
56	91
57	90
58	88
59	85
60	81
61	76
62	70
63	63
64	55
65	46
66	36
67	107
68	106
69	104
70	101
71	97
72	92
73	86
74	79
75	71
76	62
77	52
78	41

[1, 3, 2, 7, 6, 4, 11, 10, 8, 5, 19, 18, 16, 13, 9, 27, 26, 24, 21, 17, 12, 35, 34, 32, 29, 25, 20, 14, 43, 42, 40, 37, 33, 28, 22, 15, 59, 58, 56, 53, 49, 44, 38, 31, 23, 75, 74, 72, 69, 65, 60, 54, 47, 39, 30, 91, 90, 88, 85, 81, 76, 70, 63, 55, 46, 36, 107, 106, 104, 101, 97, 92, 86, 79, 71, 62, 52, 41]

cp's OEIS Frontend

A349890 Triangle read by rows: T(n,k) = n * 2^e(n) - (4^e(n) - 1) / 3 - k * (k - 1) / 2 with e(n) = 1 + floor(log_2(n)) for n >= 1 and 1 <= k <= n.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	4
7	11
8	10
9	8
10	5
11	19
12	18
13	16
14	13
15	9
16	27
17	26
18	24
19	21
20	17
21	12
22	35
23	34
24	32
25	29
26	25
27	20
28	14
29	43
30	42
31	40
32	37
33	33
34	28
35	22
36	15
37	59
38	58
39	56
40	53
41	49
42	44
43	38
44	31
45	23
46	75
47	74
48	72
49	69
50	65
51	60
52	54
53	47
54	39
55	30
56	91
57	90
58	88
59	85
60	81
61	76
62	70
63	63
64	55
65	46
66	36
67	107
68	106
69	104
70	101
71	97
72	92
73	86
74	79
75	71
76	62
77	52
78	41

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	4
7	11
8	10
9	8
10	5
11	19
12	18
13	16
14	13
15	9
16	27
17	26
18	24
19	21
20	17
21	12
22	35
23	34
24	32
25	29
26	25
27	20
28	14
29	43
30	42
31	40
32	37
33	33
34	28
35	22
36	15
37	59
38	58
39	56
40	53
41	49
42	44
43	38
44	31
45	23
46	75
47	74
48	72
49	69
50	65
51	60
52	54
53	47
54	39
55	30
56	91
57	90
58	88
59	85
60	81
61	76
62	70
63	63
64	55
65	46
66	36
67	107
68	106
69	104
70	101
71	97
72	92
73	86
74	79
75	71
76	62
77	52
78	41

n	a(n)
1	1
2	3
3	2
4	7
5	6
6	4
7	11
8	10
9	8
10	5
11	19
12	18
13	16
14	13
15	9
16	27
17	26
18	24
19	21
20	17
21	12
22	35
23	34
24	32
25	29
26	25
27	20
28	14
29	43
30	42
31	40
32	37
33	33
34	28
35	22
36	15
37	59
38	58
39	56
40	53
41	49
42	44
43	38
44	31
45	23
46	75
47	74
48	72
49	69
50	65
51	60
52	54
53	47
54	39
55	30
56	91
57	90
58	88
59	85
60	81
61	76
62	70
63	63
64	55
65	46
66	36
67	107
68	106
69	104
70	101
71	97
72	92
73	86
74	79
75	71
76	62
77	52
78	41