A006638 - cp's OEIS frontend

A006638 Restricted postage stamp problem with n denominations and 2 stamps.

n	a(n)
1	2
2	4
3	8
4	12
5	16
6	20
7	26
8	32
9	40
10	44
11	54
12	64
13	72
14	80
15	92
16	104
17	116
18	128
19	140
20	152
21	164
22	180
23	196
24	212
25	228
26	244
27	262
28	280
29	298
30	316
31	338
32	360
33	382
34	404
35	426
36	448
37	470
38	492
39	514
40	536
41	562
42	588
43	614
44	644
45	674
46	704
47	734

[2, 4, 8, 12, 16, 20, 26, 32, 40, 44, 54, 64, 72, 80, 92, 104, 116, 128, 140, 152, 164, 180, 196, 212, 228, 244, 262, 280, 298, 316, 338, 360, 382, 404, 426, 448, 470, 492, 514, 536, 562, 588, 614, 644, 674, 704, 734]

cp's OEIS Frontend

A006638 Restricted postage stamp problem with n denominations and 2 stamps.

Table of values

List of values

n	a(n)
1	2
2	4
3	8
4	12
5	16
6	20
7	26
8	32
9	40
10	44
11	54
12	64
13	72
14	80
15	92
16	104
17	116
18	128
19	140
20	152
21	164
22	180
23	196
24	212
25	228
26	244
27	262
28	280
29	298
30	316
31	338
32	360
33	382
34	404
35	426
36	448
37	470
38	492
39	514
40	536
41	562
42	588
43	614
44	644
45	674
46	704
47	734

n	a(n)
1	2
2	4
3	8
4	12
5	16
6	20
7	26
8	32
9	40
10	44
11	54
12	64
13	72
14	80
15	92
16	104
17	116
18	128
19	140
20	152
21	164
22	180
23	196
24	212
25	228
26	244
27	262
28	280
29	298
30	316
31	338
32	360
33	382
34	404
35	426
36	448
37	470
38	492
39	514
40	536
41	562
42	588
43	614
44	644
45	674
46	704
47	734

n	a(n)
1	2
2	4
3	8
4	12
5	16
6	20
7	26
8	32
9	40
10	44
11	54
12	64
13	72
14	80
15	92
16	104
17	116
18	128
19	140
20	152
21	164
22	180
23	196
24	212
25	228
26	244
27	262
28	280
29	298
30	316
31	338
32	360
33	382
34	404
35	426
36	448
37	470
38	492
39	514
40	536
41	562
42	588
43	614
44	644
45	674
46	704
47	734