cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A285787 Least number k such that the absolute value of the difference between the number of prime factors, with multiplicity, of k and k-1 is equal to n.

Table of values

n a(n)
0 3
1 2
2 8
3 17
4 32
5 97
6 128
7 257
8 769
9 2048
10 4097
11 6144
12 8192
13 40961
14 73728
15 65537
16 131072
17 524289
18 524288
19 3145728
20 6291456
21 8388608
22 18874368
23 50331648
24 113246209
25 167772161
26 268435457
27 805306368
28 1610612737
29 2147483649
30 2147483648
31 17179869184
32 21474836480

List of values

[3, 2, 8, 17, 32, 97, 128, 257, 769, 2048, 4097, 6144, 8192, 40961, 73728, 65537, 131072, 524289, 524288, 3145728, 6291456, 8388608, 18874368, 50331648, 113246209, 167772161, 268435457, 805306368, 1610612737, 2147483649, 2147483648, 17179869184, 21474836480]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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