A337133 Numbers of the form x^2+2*y^3+3*z^4 for nonnegative x, y, z.

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

Offset: 1

Author

Robert Israel, Aug 17 2020

Keywords

• nonn

Links

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

Crossrefs

Complement of A203322.

Programs

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));