A133155 - cp's OEIS frontend

A133155 Numbers formed by setting bits representing odd primes, where bit_no = (prime - 1)/2. Setting bit number b is the same as OR-ing with 2^b (i.e., bit numbers start at zero).

n	a(n)
1	2
2	6
3	14
4	46
5	110
6	366
7	878
8	2926
9	19310
10	52078
11	314222
12	1362798
13	3459950
14	11848558
15	78957422
16	615828334
17	1689570158
18	10279504750
19	44639243118
20	113358719854
21	663114533742
22	2862137789294
23	20454323833710
24	301929300544366
25	1427829207386990
26	3679629021072238

[2, 6, 14, 46, 110, 366, 878, 2926, 19310, 52078, 314222, 1362798, 3459950, 11848558, 78957422, 615828334, 1689570158, 10279504750, 44639243118, 113358719854, 663114533742, 2862137789294, 20454323833710, 301929300544366, 1427829207386990, 3679629021072238]

cp's OEIS Frontend

A133155 Numbers formed by setting bits representing odd primes, where bit_no = (prime - 1)/2. Setting bit number b is the same as OR-ing with 2^b (i.e., bit numbers start at zero).

Table of values

List of values