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”).

A347168
Nonsquare positive integers k such that k = a*b = c*m + b and b^2 = a*m + c where m > 1, 0 < a, b, c < m.
1
48, 432, 931, 2550, 11613, 27945, 49368, 68970, 123708, 172125, 235575, 365007, 515970, 602148, 614068, 854658, 1287057, 1723125, 2252628, 2436318, 3128520, 4223595, 5256603, 6850200, 8320782, 10545093, 12558784, 12562113, 15564882, 16238600, 18249300, 22193823
OFFSET
1,1
LINKS
EXAMPLE
432 is a nonsquare, m = 45, a = 16, b = 27, c = 9, 432 = 16*27 = 9*45 + 27, 27^2 = 16*45 + 9. Therefore 432 is a term.
CROSSREFS
Sequence in context: A232917 A172201 A249293 * A281374 A190416 A231342
KEYWORD
nonn
AUTHOR
Naohiro Nomoto, Aug 20 2021
EXTENSIONS
a(6)-a(22) from Jon E. Schoenfield, Aug 20 2021
More terms from Jinyuan Wang, Aug 21 2021
STATUS
approved