Questions tagged [integer-sequence]

The tag has no usage guidance.

8 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3
votes
0answers
57 views

Prepending a sequence with zeros gives `FindGeneratingFunction` hard time

Asking for FindGeneratingFunction[{1, 3, 11, 43, 171, 683, 2731, 10923, 43691, 174763}, t] gives the answer (namely ...
2
votes
0answers
43 views

Is there a feasible way to passively crosscheck sequences against the OEIS database?

What this questions is not: Can I access OEIS from Mathematica? This topic has been raised more than once and has been well addressed. Here's the situation as it seems to me: OEIS is a tremendously ...
1
vote
0answers
65 views

Finding sequence limits from matrix determinants

I have a problem whereby I want to calculate the limit of a sequence of determinants of matrices of increasing dimensions using the DiscreteLimit command. To illustrate this, I use an example with a ...
1
vote
0answers
41 views

Find all integer tuples in a bounded region

For given rational numbers $p_1/q_1,p_2/q_2,p_3/q_3$ and a negative integer $d$, I'd like to find quadruples of integers $(w,x,y,z)$ in a rectangle(of particular sidelengths) satisfying the series of ...
1
vote
0answers
65 views

Coefficients of polynomials forming an unimodal sequence

Let $f(x)=\sum_{i=0}^{n}a_{i}x^{i}$ be a polynomial with rational coefficients. I am interested in an efficient way which allows checking whether the finite sequence $A=(a_{i})_{i\in\{0,\ldots,n\}}$ ...
0
votes
0answers
100 views

Accessing internal calculations of Mathematica code

For a given Mathematica program that generates a sequence x of integers, is it possible to also generate equal length sequences of integers that were used internally by the Mathematica kernel to ...
0
votes
0answers
86 views

PARI to Mathematica conversion

I need to use the coefficients T(n,k) in my algorithm and I found a program in PARI Can anybody translate this code to mathematica? ...
0
votes
0answers
168 views

Strange behaviour if FindSequenceFunction

Consider a sequence starting with 2, subtract 2 to get the next term, now add 3 to get the next term and so on according to the rule (-2,+3) consecutively which starts like ...