A368614 - cp's OEIS frontend

A368614 Number of n-step self-avoiding walks on a 2D square lattice where each visited lattice point is either a neighbor of the first visited lattice point, else the first visited lattice point is directly visible (cf. A358036) from the lattice point when it is first visited.

n	a(n)
1	4
2	8
3	16
4	24
5	48
6	80
7	168
8	296
9	624
10	1144
11	2424
12	4552
13	9680
14	18480
15	39368
16	76128
17	162376
18	317288
19	677624
20	1335688
21	2856536
22	5672576
23	12149080
24	24280768
25	52079424
26	104665200
27	224825088
28	454047672
29	976721744
30	1981083216
31	4267578200
32	8689274768
33	18743542208
34	38295782400
35	82715689712

[4, 8, 16, 24, 48, 80, 168, 296, 624, 1144, 2424, 4552, 9680, 18480, 39368, 76128, 162376, 317288, 677624, 1335688, 2856536, 5672576, 12149080, 24280768, 52079424, 104665200, 224825088, 454047672, 976721744, 1981083216, 4267578200, 8689274768, 18743542208, 38295782400, 82715689712]

cp's OEIS Frontend

A368614 Number of n-step self-avoiding walks on a 2D square lattice where each visited lattice point is either a neighbor of the first visited lattice point, else the first visited lattice point is directly visible (cf. A358036) from the lattice point when it is first visited.

Table of values

List of values