A298408 - cp's OEIS frontend

A298408 a(n) = 2a(n-1) - a(n-3) + 2a(floor(n/2)) + 3a(floor(n/3)) + ... + na(floor(n/n)), where a(0) = 1, a(1) = 1, a(2) = 1.

n	a(n)
0	1
1	1
2	1
3	6
4	20
5	53
6	130
7	277
8	574
9	1115
10	2126
11	3862
12	7021
13	12341
14	21553
15	36957
16	63111
17	106224
18	178407
19	296638
20	492231
21	811731
22	1335994
23	2188950
24	3583027
25	5847108
26	9532980
27	15512342
28	25226123
29	40967842
30	66506422
31	107869832
32	174908573
33	283452771
34	459264017

[1, 1, 1, 6, 20, 53, 130, 277, 574, 1115, 2126, 3862, 7021, 12341, 21553, 36957, 63111, 106224, 178407, 296638, 492231, 811731, 1335994, 2188950, 3583027, 5847108, 9532980, 15512342, 25226123, 40967842, 66506422, 107869832, 174908573, 283452771, 459264017]

cp's OEIS Frontend

A298408 a(n) = 2a(n-1) - a(n-3) + 2a(floor(n/2)) + 3a(floor(n/3)) + ... + na(floor(n/n)), where a(0) = 1, a(1) = 1, a(2) = 1.

Table of values

List of values

cp's OEIS Frontend

A298408 a(n) = 2*a(n-1) - a(n-3) + 2*a(floor(n/2)) + 3*a(floor(n/3)) + ... + n*a(floor(n/n)), where a(0) = 1, a(1) = 1, a(2) = 1.

Table of values

List of values

A298408 a(n) = 2a(n-1) - a(n-3) + 2a(floor(n/2)) + 3a(floor(n/3)) + ... + na(floor(n/n)), where a(0) = 1, a(1) = 1, a(2) = 1.