login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A129359 Numbers k such that A129357(8*k) == 2 (mod 4). 1
1, 3, 5, 6, 8, 9, 13, 15, 16, 19, 20, 23, 26, 27, 28, 29, 31, 33, 34, 35, 36, 38, 45, 48, 50, 51, 53, 55, 56, 59, 61, 63, 64, 69, 71, 73, 77, 78, 83, 84, 85, 86, 89, 91, 93, 94, 96, 100, 101, 103, 104, 108, 110, 115, 119, 121, 124, 127, 129, 131, 133, 134, 135 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..63.

PROG

(PARI) lista(nn) = my(y=prod(k=1, 8*nn, (1-x)^4*sum(j=1, k, binomial(j+2, 3)*x^(j-1)) + x*O(x^(8*nn)))); for(k=1, nn, if(polcoeff(y, 8*k)%4 == 2, print1(k, ", "))); \\ Jinyuan Wang, Jan 01 2021

CROSSREFS

Cf. A129357.

Sequence in context: A164902 A278996 A099441 * A110801 A078339 A174805

Adjacent sequences:  A129356 A129357 A129358 * A129360 A129361 A129362

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Apr 11 2007

EXTENSIONS

More terms from, name edited and offset changed to 1 by Jinyuan Wang, Jan 01 2021

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 15 22:33 EDT 2021. Contains 343937 sequences. (Running on oeis4.)