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.

A281555 Consider any concatenation of the type n = concat(a,b). Sequence lists numbers whose reverses are the sum of the products of some of such couples a and b.

Table of values

n a(n)
1 351
2 621
3 886
4 1641
5 1901
6 2401
7 4122
8 4322
9 5101
10 6568
11 23913
12 30591
13 46649
14 60291
15 90877
16 199001
17 216322
18 223471
19 237391
20 297498
21 394391
22 405278
23 420552
24 425322
25 430762
26 456478
27 470149
28 546649
29 861226
30 910001
31 920781
32 1740821
33 2008541
34 2329876
35 2348812
36 2414722

List of values

[351, 621, 886, 1641, 1901, 2401, 4122, 4322, 5101, 6568, 23913, 30591, 46649, 60291, 90877, 199001, 216322, 223471, 237391, 297498, 394391, 405278, 420552, 425322, 430762, 456478, 470149, 546649, 861226, 910001, 920781, 1740821, 2008541, 2329876, 2348812, 2414722]