A359193 - cp's OEIS frontend

A359193 a(n) is the index of the smallest square pyramidal number with exactly n prime factors (counted with multiplicity).

n	a(n)
0	1
1	2
2	3
3	4
4	7
5	15
6	24
7	31
8	63
9	80
10	175
11	255
12	511
13	1023
14	512
15	6912
16	2047
17	6655
18	14336
19	16384
20	32767
21	90112
22	131071
23	180224
24	483327
25	1114112
26	1638400
27	2097151
28	1048575
29	16777216
30	8388607
31	33357824
32	16777215
33	92274687
34	67108864

[1, 2, 3, 4, 7, 15, 24, 31, 63, 80, 175, 255, 511, 1023, 512, 6912, 2047, 6655, 14336, 16384, 32767, 90112, 131071, 180224, 483327, 1114112, 1638400, 2097151, 1048575, 16777216, 8388607, 33357824, 16777215, 92274687, 67108864]

cp's OEIS Frontend

A359193 a(n) is the index of the smallest square pyramidal number with exactly n prime factors (counted with multiplicity).

Table of values

List of values