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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.

A177328 Number of permutations of n copies of 1..7 with all adjacent differences <= 3 in absolute value.

Table of values

n a(n)
0 1
1 428
2 6068622
3 171548183912
4 6595449547140990
5 302061042944500510428
6 15490059482899736687180550
7 859754565449162833823191994960
8 50593398455336474751923402897514750
9 3114239698138241536925385754973336892980
10 198659268102792043540362525905723850226165122

List of values

[1, 428, 6068622, 171548183912, 6595449547140990, 302061042944500510428, 15490059482899736687180550, 859754565449162833823191994960, 50593398455336474751923402897514750, 3114239698138241536925385754973336892980, 198659268102792043540362525905723850226165122]

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

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