A274597 - cp's OEIS frontend

A274597 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+3) rectangle.

n	a(n)
0	1
1	4
2	10
3	28
4	68
5	158
6	350
7	750
8	1559
9	3170
10	6292
11	12252
12	23445
13	44164
14	81995
15	150288
16	272150
17	487388
18	863887
19	1516592
20	2638648
21	4552488
22	7792566
23	13239698
24	22336630
25	37433466
26	62337628
27	103186612
28	169824540
29	277967860
30	452594316
31	733229626
32	1182159039
33	1897140990
34	3031012912

[1, 4, 10, 28, 68, 158, 350, 750, 1559, 3170, 6292, 12252, 23445, 44164, 81995, 150288, 272150, 487388, 863887, 1516592, 2638648, 4552488, 7792566, 13239698, 22336630, 37433466, 62337628, 103186612, 169824540, 277967860, 452594316, 733229626, 1182159039, 1897140990, 3031012912]

cp's OEIS Frontend

A274597 Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+3) rectangle.

Table of values

List of values