login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Positions of records in A373330.
1

%I #9 Jul 07 2024 17:27:24

%S 0,2,3,4,6,8,9,11,13,14,17,19,22,24,27,30,31,34,36,39,43,53,56,59,60,

%T 63,65,69,71,72,80,82,90,91,95,114,117,122,125,132,143,157,167,171,

%U 181,189,190,210,218,219,227,237,241,251,255,262,271,277,291,300,305

%N Positions of records in A373330.

%H Hugo Pfoertner, <a href="/A374177/b374177.txt">Table of n, a(n) for n = 1..10000</a>

%o (PARI) a374177(upto) = {my(r=-oo); for(n=0, upto, my(s=n^2, t=s*(s+1)/2, j=t-sqrtint(t)^2); if(j>r, print1(n,", "); r=j))};

%o a374177(300)

%Y Cf. A000217, A000290, A373330, A373331, A373332, A374175.

%K nonn

%O 1,2

%A _Hugo Pfoertner_, Jul 07 2024