A327889 - cp's OEIS frontend

A327889 Triangle read by rows T(n, k) = (-1)^k * A000217(k) * F(binomial(n,k)), where F(x) = 1 if the largest decimal digit of x is 1, and 0 otherwise.

n	a(n)
1	0
2	0
3	-1
4	0
5	0
6	3
7	0
8	0
9	0
10	-6
11	0
12	0
13	0
14	0
15	10
16	0
17	0
18	3
19	-6
20	0
21	-15
22	0
23	0
24	3
25	0
26	10
27	0
28	21
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	-28
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	36
46	0
47	0
48	0
49	0
50	10
51	-15
52	0
53	0
54	0
55	-45
56	0
57	-1
58	0
59	-6
60	0
61	0
62	0
63	-28
64	0
65	-45
66	55
67	0
68	-1
69	0
70	-6
71	0
72	0
73	0
74	0
75	36
76	0
77	55
78	-66
79	0
80	-1
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	-66
91	78

[0, 0, -1, 0, 0, 3, 0, 0, 0, -6, 0, 0, 0, 0, 10, 0, 0, 3, -6, 0, -15, 0, 0, 3, 0, 10, 0, 21, 0, 0, 0, 0, 0, 0, 0, -28, 0, 0, 0, 0, 0, 0, 0, 0, 36, 0, 0, 0, 0, 10, -15, 0, 0, 0, -45, 0, -1, 0, -6, 0, 0, 0, -28, 0, -45, 55, 0, -1, 0, -6, 0, 0, 0, 0, 36, 0, 55, -66, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, -66, 78]

cp's OEIS Frontend

A327889 Triangle read by rows T(n, k) = (-1)^k * A000217(k) * F(binomial(n,k)), where F(x) = 1 if the largest decimal digit of x is 1, and 0 otherwise.

Table of values

List of values

n	a(n)
1	0
2	0
3	-1
4	0
5	0
6	3
7	0
8	0
9	0
10	-6
11	0
12	0
13	0
14	0
15	10
16	0
17	0
18	3
19	-6
20	0
21	-15
22	0
23	0
24	3
25	0
26	10
27	0
28	21
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	-28
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	36
46	0
47	0
48	0
49	0
50	10
51	-15
52	0
53	0
54	0
55	-45
56	0
57	-1
58	0
59	-6
60	0
61	0
62	0
63	-28
64	0
65	-45
66	55
67	0
68	-1
69	0
70	-6
71	0
72	0
73	0
74	0
75	36
76	0
77	55
78	-66
79	0
80	-1
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	-66
91	78

n	a(n)
1	0
2	0
3	-1
4	0
5	0
6	3
7	0
8	0
9	0
10	-6
11	0
12	0
13	0
14	0
15	10
16	0
17	0
18	3
19	-6
20	0
21	-15
22	0
23	0
24	3
25	0
26	10
27	0
28	21
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	-28
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	36
46	0
47	0
48	0
49	0
50	10
51	-15
52	0
53	0
54	0
55	-45
56	0
57	-1
58	0
59	-6
60	0
61	0
62	0
63	-28
64	0
65	-45
66	55
67	0
68	-1
69	0
70	-6
71	0
72	0
73	0
74	0
75	36
76	0
77	55
78	-66
79	0
80	-1
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	-66
91	78

n	a(n)
1	0
2	0
3	-1
4	0
5	0
6	3
7	0
8	0
9	0
10	-6
11	0
12	0
13	0
14	0
15	10
16	0
17	0
18	3
19	-6
20	0
21	-15
22	0
23	0
24	3
25	0
26	10
27	0
28	21
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	-28
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	36
46	0
47	0
48	0
49	0
50	10
51	-15
52	0
53	0
54	0
55	-45
56	0
57	-1
58	0
59	-6
60	0
61	0
62	0
63	-28
64	0
65	-45
66	55
67	0
68	-1
69	0
70	-6
71	0
72	0
73	0
74	0
75	36
76	0
77	55
78	-66
79	0
80	-1
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	0
90	-66
91	78