A201271 - cp's OEIS frontend

A201271 Number of n X 2 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

n	a(n)
0	1
1	3
2	5
3	4
4	12
5	16
6	9
7	27
8	33
9	16
10	48
11	56
12	25
13	75
14	85
15	36
16	108
17	120
18	49
19	147
20	161
21	64
22	192
23	208
24	81
25	243
26	261
27	100
28	300
29	320
30	121
31	363
32	385
33	144
34	432
35	456
36	169
37	507
38	533
39	196
40	588
41	616
42	225
43	675
44	705
45	256
46	768
47	800
48	289
49	867
50	901
51	324
52	972
53	1008
54	361
55	1083
56	1121
57	400
58	1200

[1, 3, 5, 4, 12, 16, 9, 27, 33, 16, 48, 56, 25, 75, 85, 36, 108, 120, 49, 147, 161, 64, 192, 208, 81, 243, 261, 100, 300, 320, 121, 363, 385, 144, 432, 456, 169, 507, 533, 196, 588, 616, 225, 675, 705, 256, 768, 800, 289, 867, 901, 324, 972, 1008, 361, 1083, 1121, 400, 1200]

cp's OEIS Frontend

A201271 Number of n X 2 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Table of values

List of values