The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A229502 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A229502

Expansion of q * f(-q) * f(-q^4) * f(-q^16) * f(q, -q^3) in powers of q where f() is a Ramanujan theta function.
(history; published version)

#27 by Charles R Greathouse IV at Thu Sep 08 08:46:05 EDT 2022

PROG

(MAGMAMagma) Basis( CuspForms( Gamma1(16), 2), 78)[1];

Discussion

Thu Sep 08

08:46

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

#26 by Charles R Greathouse IV at Fri Mar 12 22:24:47 EST 2021

LINKS

M. Michael Somos, <a href="/A010815/a010815.txt">Introduction to Ramanujan theta functions</a>

Discussion

Fri Mar 12

22:24

OEIS Server: https://oeis.org/edit/global/2897

#25 by N. J. A. Sloane at Wed Nov 13 21:58:50 EST 2019

LINKS

M. Somos, <a href="http://somos.crg4.comA010815/multiqa010815.htmltxt">Introduction to Ramanujan theta functions</a>

Discussion

Wed Nov 13

21:58

OEIS Server: https://oeis.org/edit/global/2832

#24 by OEIS Server at Fri Aug 10 00:30:27 EDT 2018

LINKS

G. C. Greubel, <a href="/A229502/b229502_2.txt">Table of n, a(n) for n = 1..2500</a> (terms 1..77 from Michael Somos)

#23 by Michael Somos at Fri Aug 10 00:30:27 EDT 2018

STATUS

editing

approved

Discussion

Fri Aug 10

00:30

OEIS Server: Installed new b-file as b229502.txt.  Old b-file is now b229502_2.txt.

#22 by Michael Somos at Fri Aug 10 00:29:54 EDT 2018

FORMULA

Euler transform of period 16 sequence [ 0, -2, -2, -1, -2, -1, 0, -4, 0, -1, -2, -1, -2, -2, 0, -4, ...].

PROG

(MAGMA) Basis( CuspForms( Gamma1(16), 2), 78)[1];

STATUS

proposed

editing

Discussion

Fri Aug 10

00:30

Michael Somos: Space edit. Forgot to give MAGMA code back in 2013.

#21 by G. C. Greubel at Thu Aug 09 23:06:26 EDT 2018

STATUS

editing

proposed

#20 by G. C. Greubel at Thu Aug 09 23:06:18 EDT 2018

LINKS

G. C. Greubel, <a href="/A229502/b229502_2.txt">Table of n, a(n) for n = 1..2500</a> (terms 1..77 from Michael Somos)

Michael Somos)

#19 by G. C. Greubel at Thu Aug 09 23:06:03 EDT 2018

LINKS

G. C. Greubel, <a href="/A229502/b229502_2.txt">Table of n, a(n) for n = 1..2500</a> (terms 1..77 from

Michael Somos)

#18 by G. C. Greubel at Thu Aug 09 23:05:08 EDT 2018

LINKS

Michael Somos, G. C. Greubel, <a href="/A229502/b229502_2.txt">Table of n, a(n) for n = 1..772500</a>

STATUS

approved

editing