A220689 - cp's OEIS frontend

A220689 Triangular numbers generated in A224218. That is, the triangular numbers generated by the operation triangular(i) XOR triangular(i+1) along increasing i.

n	a(n)
1	1
2	21
3	21
4	105
5	105
6	105
7	105
8	946
9	946
10	666
11	1653
12	666
13	1378
14	946
15	1225
16	946
17	4005
18	1378
19	4005
20	1378
21	7381
22	1225
23	1378
24	1653
25	2485
26	4005
27	31125
28	4005
29	4005
30	4005
31	2485
32	13861
33	13861
34	5356
35	4005
36	7381
37	5356
38	5356
39	7381
40	4005
41	5356
42	29161
43	12561
44	12561
45	4186
46	4186
47	4186
48	4186

[1, 21, 21, 105, 105, 105, 105, 946, 946, 666, 1653, 666, 1378, 946, 1225, 946, 4005, 1378, 4005, 1378, 7381, 1225, 1378, 1653, 2485, 4005, 31125, 4005, 4005, 4005, 2485, 13861, 13861, 5356, 4005, 7381, 5356, 5356, 7381, 4005, 5356, 29161, 12561, 12561, 4186, 4186, 4186, 4186]

cp's OEIS Frontend

A220689 Triangular numbers generated in A224218. That is, the triangular numbers generated by the operation triangular(i) XOR triangular(i+1) along increasing i.

Table of values

List of values