A375981 - cp's OEIS frontend

A375981 Number of subsets of {1,2,...,n} such that no two elements differ by 1, 4, or 5.

n	a(n)
0	1
1	2
2	3
3	5
4	8
5	11
6	14
7	19
8	25
9	34
10	49
11	70
12	99
13	141
14	196
15	270
16	375
17	520
18	723
19	1014
20	1420
21	1985
22	2777
23	3874
24	5396
25	7526
26	10496
27	14642
28	20449
29	28555
30	39860
31	55647
32	77660
33	108356
34	151214
35	211028
36	294507
37	411071
38	573763
39	800796
40	1117679
41	1559895
42	2177002

[1, 2, 3, 5, 8, 11, 14, 19, 25, 34, 49, 70, 99, 141, 196, 270, 375, 520, 723, 1014, 1420, 1985, 2777, 3874, 5396, 7526, 10496, 14642, 20449, 28555, 39860, 55647, 77660, 108356, 151214, 211028, 294507, 411071, 573763, 800796, 1117679, 1559895, 2177002]

cp's OEIS Frontend

A375981 Number of subsets of {1,2,...,n} such that no two elements differ by 1, 4, or 5.

Table of values

List of values