A378497 - cp's OEIS frontend

A378497 a(n) is the number whose base-4 digits are 1 followed by the first n-1 terms of the periodic sequence with initial period 2,0,3.

n	a(n)
1	1
2	6
3	24
4	99
5	398
6	1592
7	6371
8	25486
9	101944
10	407779
11	1631118
12	6524472
13	26097891
14	104391566
15	417566264
16	1670265059
17	6681060238
18	26724240952
19	106896963811
20	427587855246
21	1710351420984
22	6841405683939
23	27365622735758
24	109462490943032
25	437849963772131

[1, 6, 24, 99, 398, 1592, 6371, 25486, 101944, 407779, 1631118, 6524472, 26097891, 104391566, 417566264, 1670265059, 6681060238, 26724240952, 106896963811, 427587855246, 1710351420984, 6841405683939, 27365622735758, 109462490943032, 437849963772131]

cp's OEIS Frontend

A378497 a(n) is the number whose base-4 digits are 1 followed by the first n-1 terms of the periodic sequence with initial period 2,0,3.

Table of values

List of values