A240673 - cp's OEIS frontend

A240673 Triangle read by rows: T(n, k) = v(n, k)*((1/v(n, k)) mod prime(k)), where v(n, k) = (Product_{j=1..n} prime(j))/prime(k), n >= 1, 1 <= k <= n.

n	a(n)
1	1
2	3
3	4
4	15
5	10
6	6
7	105
8	70
9	126
10	120
11	1155
12	1540
13	1386
14	330
15	210
16	15015
17	20020
18	6006
19	25740
20	16380
21	6930
22	255255
23	170170
24	306306
25	145860
26	46410
27	157080
28	450450
29	4849845
30	3233230
31	3879876
32	8314020
33	6172530
34	3730650
35	9129120
36	9189180

[1, 3, 4, 15, 10, 6, 105, 70, 126, 120, 1155, 1540, 1386, 330, 210, 15015, 20020, 6006, 25740, 16380, 6930, 255255, 170170, 306306, 145860, 46410, 157080, 450450, 4849845, 3233230, 3879876, 8314020, 6172530, 3730650, 9129120, 9189180]

cp's OEIS Frontend

A240673 Triangle read by rows: T(n, k) = v(n, k)*((1/v(n, k)) mod prime(k)), where v(n, k) = (Product_{j=1..n} prime(j))/prime(k), n >= 1, 1 <= k <= n.

Table of values

List of values