A206960 - cp's OEIS frontend

A206960 a(0)=0, a(1)=1, for n>1, a(n) = n<>n, where k<>m = k<+>k<+>...<+>k is the m-1-fold iteration of the operation <+> defined in A206853.

n	a(n)
0	0
1	1
2	4
3	9
4	31
5	66
6	190
7	385
8	1022
9	2055
10	5112
11	10242
12	24572
13	49153
14	114686
15	229377
16	524287
17	1048590
18	2359281
19	4718599
20	10485753
21	20971521
22	46137342
23	92274689
24	201326590
25	402653191
26	872415224
27	1744830466
28	3758096380
29	7516192769
30	16106127358
31	32212254721

[0, 1, 4, 9, 31, 66, 190, 385, 1022, 2055, 5112, 10242, 24572, 49153, 114686, 229377, 524287, 1048590, 2359281, 4718599, 10485753, 20971521, 46137342, 92274689, 201326590, 402653191, 872415224, 1744830466, 3758096380, 7516192769, 16106127358, 32212254721]

cp's OEIS Frontend

A206960 a(0)=0, a(1)=1, for n>1, a(n) = n<>n, where k<>m = k<+>k<+>...<+>k is the m-1-fold iteration of the operation <+> defined in A206853.

Table of values

List of values

cp's OEIS Frontend

A206960 a(0)=0, a(1)=1, for n>1, a(n) = n<*>n, where k<*>m = k<+>k<+>...<+>k is the m-1-fold iteration of the operation <+> defined in A206853.

Table of values

List of values

A206960 a(0)=0, a(1)=1, for n>1, a(n) = n<>n, where k<>m = k<+>k<+>...<+>k is the m-1-fold iteration of the operation <+> defined in A206853.