A113876 - cp's OEIS frontend

A113876 a(n) = a(n-1) + 2^(k(n)), where k(n) is the n-th term of the sequence formed by k(1)=0 together with the numbers A042964.

n	a(n)
1	1
2	5
3	13
4	77
5	205
6	1229
7	3277
8	19661
9	52429
10	314573
11	838861
12	5033165
13	13421773
14	80530637
15	214748365
16	1288490189
17	3435973837
18	20615843021
19	54975581389
20	329853488333
21	879609302221
22	5277655813325
23	14073748835533
24	84442493013197
25	225179981368525
26	1351079888211149

[1, 5, 13, 77, 205, 1229, 3277, 19661, 52429, 314573, 838861, 5033165, 13421773, 80530637, 214748365, 1288490189, 3435973837, 20615843021, 54975581389, 329853488333, 879609302221, 5277655813325, 14073748835533, 84442493013197, 225179981368525, 1351079888211149]

cp's OEIS Frontend

A113876 a(n) = a(n-1) + 2^(k(n)), where k(n) is the n-th term of the sequence formed by k(1)=0 together with the numbers A042964.

Table of values

List of values