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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.

A077300 Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 7, all different and > 7 (0 is never taken as the most significant digit).

Table of values

n a(n)
1 1234567891011
2 12131
3 4151
4 6171819202122
5 2324
6 252
7 6272
8 829303132
9 33343536373
10 83940414243
11 4445
12 46474849505
13 15253
14 5455565758596061626
15 364
16 6566
17 6768697071727374
18 7576777879808182838485
19 868
20 78889909
21 192939495

List of values

[1234567891011, 12131, 4151, 6171819202122, 2324, 252, 6272, 829303132, 33343536373, 83940414243, 4445, 46474849505, 15253, 5455565758596061626, 364, 6566, 6768697071727374, 7576777879808182838485, 868, 78889909, 192939495]

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

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