A349479 - cp's OEIS frontend

A349479 Irregular triangle read by rows: T(n,k) = S1(n,k)*2^k, where S1(n,k) is the associated Stirling number of the first kind (cf. A008306) (n >= 0, 0 <= k <= floor(n/2)).

n	a(n)
0	1
1	0
2	0
3	2
4	0
5	4
6	0
7	12
8	12
9	0
10	48
11	80
12	0
13	240
14	520
15	120
16	0
17	1440
18	3696
19	1680
20	0
21	10080
22	29232
23	19040
24	1680
25	0
26	80640
27	256896
28	211456
29	40320
30	0
31	725760
32	2493504
33	2429280
34	705600
35	30240
36	0
37	7257600
38	26547840
39	29430720
40	11285120
41	1108800
42	0
43	79833600
44	307992960
45	378595008
46	177580480
47	27720000
48	665280

[1, 0, 0, 2, 0, 4, 0, 12, 12, 0, 48, 80, 0, 240, 520, 120, 0, 1440, 3696, 1680, 0, 10080, 29232, 19040, 1680, 0, 80640, 256896, 211456, 40320, 0, 725760, 2493504, 2429280, 705600, 30240, 0, 7257600, 26547840, 29430720, 11285120, 1108800, 0, 79833600, 307992960, 378595008, 177580480, 27720000, 665280]

cp's OEIS Frontend

A349479 Irregular triangle read by rows: T(n,k) = S1(n,k)*2^k, where S1(n,k) is the associated Stirling number of the first kind (cf. A008306) (n >= 0, 0 <= k <= floor(n/2)).

Table of values

List of values