OFFSET
2,4
LINKS
G. C. Greubel, Table of n, a(n) for n = 2..5000
MATHEMATICA
PROG
(Magma)
A023533:= func< n | Binomial(Floor((6*n-1)^(1/3)) +2, 3) ne n select 0 else 1 >;
[A025096(n): n in [2..130]]; // G. C. Greubel, Sep 08 2022
(SageMath)
@CachedFunction
def A023533(n): return 0 if (binomial( floor( (6*n-1)^(1/3) ) +2, 3) != n) else 1
[A025096(n) for n in (2..100)] # G. C. Greubel, Sep 08 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
Offset corrected by G. C. Greubel, Sep 08 2022
STATUS
approved