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.

A386650 Product of first n quadrinomial coefficients (A005725) for n > 0 with a(0) = 1.

Table of values

n a(n)
0 1
1 1
2 3
3 30
4 930
5 93930
6 31560480
7 35600221440
8 136099646565120
9 1776236487321381120
10 79580723341459838319360
11 12296654209275691297430868480
12 6578267322410960919238807125534720
13 12223446894741861497849104893155093176320
14 79112201841847644246811045518121813092796661760

List of values

[1, 1, 3, 30, 930, 93930, 31560480, 35600221440, 136099646565120, 1776236487321381120, 79580723341459838319360, 12296654209275691297430868480, 6578267322410960919238807125534720, 12223446894741861497849104893155093176320, 79112201841847644246811045518121813092796661760]

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

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