A074861 - cp's OEIS frontend

A074861 Iccanobirt sequence: a(n) = R(a(n-1)) + R(a(n-2)) + R(a(n-3)) where a(1)=a(2)=a(3)=1 and R(n) (A004086) is the reverse of n.

n	a(n)
1	1
2	1
3	1
4	3
5	5
6	9
7	17
8	85
9	138
10	960
11	958
12	1759
13	10499
14	109831
15	247873
16	617044
17	958359
18	1773317
19	8528346
20	14525888
21	102424570
22	170715000
23	164793813
24	394338733
25	656748025
26	1177078610
27	1027388860
28	1378392568
29	9510483643
30	12805616091

[1, 1, 1, 3, 5, 9, 17, 85, 138, 960, 958, 1759, 10499, 109831, 247873, 617044, 958359, 1773317, 8528346, 14525888, 102424570, 170715000, 164793813, 394338733, 656748025, 1177078610, 1027388860, 1378392568, 9510483643, 12805616091]

cp's OEIS Frontend

A074861 Iccanobirt sequence: a(n) = R(a(n-1)) + R(a(n-2)) + R(a(n-3)) where a(1)=a(2)=a(3)=1 and R(n) (A004086) is the reverse of n.

Table of values

List of values