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 A143444 #4 Mar 30 2012 17:39:39 %S A143444 0,2,3,3,7,6,13,12,16,14,29,17,37,26,33,30,53,32,61,41,55,42,79,40,82, %T A143444 58,82,59,107,44,113,80,99,82,119,70,151,94,123,88,173,74,181,115,134, %U A143444 116,199,98,210,122,173,133,239,100,215,142,199,160,271,107,281,168,206 %N A143444 A054525 * the primes prefaced by 0. %C A143444 a(5) = 7 = (-1, 0, 0, 0, 1) dot (0, 2, 3, 5, 7). %C A143444 a(p(n)) = p(n-1) since prime rows of the Mobius transform have only one nonzero multiplier besides the (-1) which is multiplied * the 0 in (0, 2, 3, 5, 7,...). Cf. A055003: (1, 3, 7, 13, 29, 37,...) a subset of primes in the sequences, but other terms may be primes. %F A143444 Mobius transform of the primes prefaced by 0. %e A143444 a(6) = 6 = (1, -1, -1, 0, 0, 1) dot (0, 2, 3, 5, 7, 11) where (1, -1, -1, 0, 0, 1) = row 6 of A051731, the Mobius transform. %Y A143444 Cf. A000040, A051731, A055003. %K A143444 nonn %O A143444 1,2 %A A143444 _Gary W. Adamson_, Aug 15 2008 %E A143444 a(12) replaced by 17 and extended by _R. J. Mathar_, Jan 19 2009