A353150 - cp's OEIS frontend

A353150 a(n) is the number of distinct pairs that can be made in exactly n iterations of either of the two maps (x, y) -> (x OR (2^y), 0) or (x, y) -> (x, y+1), starting from (0,0).

n	a(n)
0	1
1	2
2	4
3	7
4	12
5	18
6	28
7	40
8	58
9	80
10	110
11	147
12	198
13	259
14	338
15	434
16	558
17	706
18	892
19	1114
20	1389
21	1715
22	2115
23	2588
24	3163
25	3836
26	4647
27	5593
28	6725
29	8042
30	9600
31	11413
32	13551
33	16014
34	18907
35	22230
36	26112
37	30573
38	35750
39	41667
40	48514
41	56332
42	65326
43	75577
44	87343
45	100677

[1, 2, 4, 7, 12, 18, 28, 40, 58, 80, 110, 147, 198, 259, 338, 434, 558, 706, 892, 1114, 1389, 1715, 2115, 2588, 3163, 3836, 4647, 5593, 6725, 8042, 9600, 11413, 13551, 16014, 18907, 22230, 26112, 30573, 35750, 41667, 48514, 56332, 65326, 75577, 87343, 100677]

cp's OEIS Frontend

A353150 a(n) is the number of distinct pairs that can be made in exactly n iterations of either of the two maps (x, y) -> (x OR (2^y), 0) or (x, y) -> (x, y+1), starting from (0,0).

Table of values

List of values