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!)
A337133 Numbers of the form x^2+2*y^3+3*z^4 for nonnegative x, y, z. 1
0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 12, 14, 16, 17, 18, 19, 20, 21, 23, 25, 27, 28, 30, 32, 35, 36, 38, 39, 41, 44, 48, 49, 50, 51, 52, 54, 55, 57, 58, 59, 61, 63, 64, 65, 66, 67, 68, 69, 70, 73, 75, 79, 80, 81, 82, 83, 84, 86, 89, 90, 93, 97, 99, 100, 102, 103, 105, 106, 111, 112, 113, 114, 116, 118 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

MAPLE

N:= 200: # for terms <= N

E1:= {seq(3*z^4, z=0..floor((N/3)^(1/4)))}:

E2:= map(t -> seq(t+2*y^3, y=0..floor(((N-t)/2)^(1/3))), E1):

E3:= map(t -> seq(t+x^2, x=0..floor(sqrt(N-t))), E2):

sort(convert(E3, list));

CROSSREFS

Complement of A203322.

Sequence in context: A326643 A222030 A327261 * A062490 A211543 A180711

Adjacent sequences:  A337130 A337131 A337132 * A337134 A337135 A337136

KEYWORD

nonn

AUTHOR

Robert Israel, Aug 17 2020

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 June 22 21:29 EDT 2021. Contains 345393 sequences. (Running on oeis4.)