A252932 - cp's OEIS frontend

A252932 Number of n X 2 nonnegative integer arrays with upper left 0 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.

n	a(n)
1	2
2	5
3	13
4	34
5	83
6	176
7	329
8	558
9	879
10	1308
11	1861
12	2554
13	3403
14	4424
15	5633
16	7046
17	8679
18	10548
19	12669
20	15058
21	17731
22	20704
23	23993
24	27614
25	31583
26	35916
27	40629
28	45738
29	51259
30	57208
31	63601
32	70454
33	77783
34	85604
35	93933
36	102786
37	112179
38	122128
39	132649
40	143758

[2, 5, 13, 34, 83, 176, 329, 558, 879, 1308, 1861, 2554, 3403, 4424, 5633, 7046, 8679, 10548, 12669, 15058, 17731, 20704, 23993, 27614, 31583, 35916, 40629, 45738, 51259, 57208, 63601, 70454, 77783, 85604, 93933, 102786, 112179, 122128, 132649, 143758]

cp's OEIS Frontend

A252932 Number of n X 2 nonnegative integer arrays with upper left 0 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.

Table of values

List of values