A356208 a(n) is the number of occurrences of n in A133388.

2, 3, 4, 4, 5, 7, 6, 8, 8, 9, 9, 10, 10, 12, 13, 12, 12, 15, 14, 17, 16, 16, 17, 18, 19, 18, 19, 20, 18, 24, 20, 22, 25, 22, 27, 26, 23, 25, 25, 29, 26, 30, 27, 31, 32, 32, 24, 33, 33, 34, 32, 32, 35, 37, 36, 37, 38, 32, 35, 44, 36, 41, 41, 40, 42, 45, 39, 43, 42

Offset: 1

Author

Hugo Pfoertner, Sep 07 2022

Keywords

• nonn

Crossrefs

Cf. A000161, A001481, A133388, A356209.

Programs

Python

from sympy.solvers.diophantine.diophantine import diop_DN
def A356208(n): return sum(1 for m in range(1,(n**2<<1)+1) if n==max((a for a, b in diop_DN(-1,m)),default=0)) # Chai Wah Wu, Sep 08 2022