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.

A069077 Triangular numbers such that the product of digits is also a (positive) triangular number.

Table of values

n a(n)
1 1
2 3
3 6
4 66
5 153
6 231
7 351
8 465
9 741
10 1326
11 2556
12 5671
13 6786
14 14535
15 21115
16 24531
17 25651
18 33411
19 43956
20 57291
21 58311
22 71253
23 92665
24 95266
25 123753
26 153181
27 167331
28 278631
29 325221
30 341551
31 351541
32 372816
33 459361
34 491536
35 516636
36 521731
37 567645
38 572985
39 613278

List of values

[1, 3, 6, 66, 153, 231, 351, 465, 741, 1326, 2556, 5671, 6786, 14535, 21115, 24531, 25651, 33411, 43956, 57291, 58311, 71253, 92665, 95266, 123753, 153181, 167331, 278631, 325221, 341551, 351541, 372816, 459361, 491536, 516636, 521731, 567645, 572985, 613278]

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

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