This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A101549 #7 Mar 30 2012 17:22:34 %S A101549 22,26,34,38,39,46,51,57,58,62,68,69,74,76,82,86,87,92,93,94,106,111, %T A101549 115,116,118,122,123,124,129,134,141,142,145,146,148,155,158,159,164, %U A101549 166,172,174,177,178,183,185,186,188,194,201,202,203,205,206,212,213 %N A101549 Composite lopsided numbers: composite numbers n such that the largest prime factor > 2 sqrt(n). %C A101549 All primes > 3 are also lopsided. See A101550 for all lopsided numbers. %H A101549 T. D. Noe, <a href="/A101549/b101549.txt">Table of n, a(n) for n = 1..1000</a> %H A101549 G. Everest, S. Stevens, D. Tamsett and T. Ward, <a href="http://www.arXiv.org/abs/math.NT/0412079">Primitive Divisors of Quadratic Polynomial Sequences</a> %t A101549 Select[Range[2, 300], !PrimeQ[ # ]&&FactorInteger[ # ][[ -1, 1]]>2Sqrt[ # ]&] %Y A101549 Cf. A063763 (composite n such that the largest prime factor > sqrt(n)), A064052 (n such that the largest prime factor > sqrt(n)). %K A101549 nonn %O A101549 1,1 %A A101549 _T. D. Noe_, Dec 06 2004