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.

A278622 Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.

Table of values

n a(n)
1 16
2 357
3 4754
4 49503
5 439446
6 3438414
7 24103803
8 153073965
9 888863183
10 4758719096
11 23665023516
12 110046094356
13 481337375925
14 1990600963219
15 7819169497216
16 29290369365213
17 105007107699726
18 361416768054859

List of values

[16, 357, 4754, 49503, 439446, 3438414, 24103803, 153073965, 888863183, 4758719096, 23665023516, 110046094356, 481337375925, 1990600963219, 7819169497216, 29290369365213, 105007107699726, 361416768054859]

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

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