A213947 - cp's OEIS frontend

A213947 Triangle read by rows: columns are finite differences of the INVERT transform of (1, 2, 3, ...) terms.

n	a(n)
1	1
2	1
3	2
4	1
5	4
6	3
7	1
8	10
9	6
10	4
11	1
12	20
13	21
14	8
15	5
16	1
17	42
18	57
19	28
20	10
21	6
22	1
23	84
24	150
25	88
26	35
27	12
28	7
29	1
30	170
31	390
32	252
33	110
34	42
35	14
36	8
37	1
38	340
39	990
40	712
41	335
42	132
43	49
44	16
45	9
46	1
47	682
48	2475
49	1992
50	975
51	402
52	154
53	56
54	18
55	10

[1, 1, 2, 1, 4, 3, 1, 10, 6, 4, 1, 20, 21, 8, 5, 1, 42, 57, 28, 10, 6, 1, 84, 150, 88, 35, 12, 7, 1, 170, 390, 252, 110, 42, 14, 8, 1, 340, 990, 712, 335, 132, 49, 16, 9, 1, 682, 2475, 1992, 975, 402, 154, 56, 18, 10]

cp's OEIS Frontend

A213947 Triangle read by rows: columns are finite differences of the INVERT transform of (1, 2, 3, ...) terms.

Table of values

List of values