OFFSET
1,1
COMMENTS
See A187950.
Positions of 1 in the {0->000, 11->null}-transform of the Sturmian word A080764; see A286996. Also, a(n) - a(n-1) is in {7,10} for n >= 1, and a(n)/n -> 4 + 3*sqrt(2). - Clark Kimberling, May 20 2017
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..10000
MATHEMATICA
r=2^(-1/2); k=3;
t=Table[Floor[n*r+k*r]-Floor[n*r]-Floor[k*r], {n, 1, 220}]
Flatten[Position[t, 1] ] (* A188383 *)
PROG
(Python)
from __future__ import division
from gmpy2 import isqrt
A188383_list = [n for n in range(1, 10**6) if isqrt((n+3)**2//2) - isqrt(n**2//2) == 3] # Chai Wah Wu, Oct 08 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Mar 30 2011
STATUS
approved