The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A022567

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A022567

Expansion of Product_{m>=1} (1+x^m)^2.
(history; published version)

#138 by Michael De Vlieger at Fri Mar 29 11:44:06 EDT 2024

STATUS

proposed

approved

#137 by Michel Marcus at Fri Mar 29 11:41:27 EDT 2024

STATUS

editing

proposed

#136 by Michel Marcus at Fri Mar 29 11:41:21 EDT 2024

LINKS

INRIA Algorithms Project, <a href="http://ecs.inria.fr/services/structure?nbr=852">Encyclopedia of Combinatorial Structures 852</a>

STATUS

proposed

editing

#135 by Michael De Vlieger at Fri Mar 29 10:58:17 EDT 2024

STATUS

editing

proposed

#134 by Michael De Vlieger at Fri Mar 29 10:58:15 EDT 2024

LINKS

Mbavhalelo Mulokwe and Konstantinos Zoubos, <a href="https://arxiv.org/abs/2403.08531">Free fermions, neutrality and modular transformations</a>, arXiv:2403.08531 [hep-th], 2024.

STATUS

approved

editing

#133 by Charles R Greathouse IV at Thu Sep 08 08:44:46 EDT 2022

PROG

(MAGMAMagma) Coefficients(&*[(1+x^m)^2:m in [1..40]])[1..40] where x is PolynomialRing(Integers()).1; // G. C. Greubel, Feb 26 2018

Discussion

Thu Sep 08

08:44

OEIS Server: https://oeis.org/edit/global/2944

#132 by Peter Luschny at Thu Dec 10 14:44:45 EST 2020

STATUS

editing

approved

#131 by Peter Luschny at Thu Dec 10 14:44:34 EST 2020

PROG

a b = BinaryRecurrenceSequence(0, 1, 0, 2)

b a = EulerTransform(ab)

print([ba(n) for n in range(45)]) # Peter Luschny, Nov 11 2020

STATUS

proposed

editing

#130 by Andrew Howroyd at Thu Dec 10 14:25:09 EST 2020

STATUS

editing

proposed

#129 by Andrew Howroyd at Thu Dec 10 14:25:03 EST 2020

COMMENTS

The least gap is also know known as the minimal excludant or mex; see Andrews and Newman. - George Beck, Dec 10 2020

STATUS

proposed

editing