A022855 - cp's OEIS frontend

A022855 a(n) = [ a(n-1)/a(1) ] + [ a(n-1)/a(2) ] + ... + [ a(n-1)/a(n-1) ] for n >= 3, with initial terms 1,1.

n	a(n)
1	1
2	1
3	2
4	5
5	13
6	35
7	97
8	271
9	761
10	2143
11	6042
12	17043
13	48081
14	135656
15	382752
16	1079939
17	3047074
18	8597406
19	24257838
20	68444231
21	193117503
22	544886995
23	1537415492
24	4337865331
25	12239421132
26	34533905116
27	97438480950
28	274925686472
29	775711324186
30	2188693483680
31	6175466331563

[1, 1, 2, 5, 13, 35, 97, 271, 761, 2143, 6042, 17043, 48081, 135656, 382752, 1079939, 3047074, 8597406, 24257838, 68444231, 193117503, 544886995, 1537415492, 4337865331, 12239421132, 34533905116, 97438480950, 274925686472, 775711324186, 2188693483680, 6175466331563]

cp's OEIS Frontend

A022855 a(n) = [ a(n-1)/a(1) ] + [ a(n-1)/a(2) ] + ... + [ a(n-1)/a(n-1) ] for n >= 3, with initial terms 1,1.

Table of values

List of values