# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a373404 Showing 1-1 of 1 %I A373404 #8 Jun 06 2024 23:57:36 %S A373404 18,9,36,15,54,21,46,25,26,27,90,33,34,35,74,39,126,45,94,49,50,51, %T A373404 106,55,56,57,180,63,64,65,134,69,216,75,76,77,158,81,166,85,86,87, %U A373404 178,91,92,93,94,95,194,99,306,105,324,111,226,115,116,117,118,119 %N A373404 Sum of the n-th maximal antirun of composite numbers differing by more than one. %C A373404 The length of this antirun is given by A373403. %C A373404 An antirun of a sequence (in this case A002808) is an interval of positions at which consecutive terms differ by more than one. %H A373404 Gus Wiseman, Four statistics for runs and antiruns of prime, nonprime, squarefree, and nonsquarefree numbers %e A373404 Row sums of: %e A373404 4 6 8 %e A373404 9 %e A373404 10 12 14 %e A373404 15 %e A373404 16 18 20 %e A373404 21 %e A373404 22 24 %e A373404 25 %e A373404 26 %e A373404 27 %e A373404 28 30 32 %e A373404 33 %e A373404 34 %e A373404 35 %e A373404 36 38 %e A373404 39 %e A373404 40 42 44 %t A373404 Total/@Split[Select[Range[100],CompositeQ],#1+1!=#2&]//Most %Y A373404 Partial sums are a subset of A053767 (partial sums of composite numbers). %Y A373404 Functional neighbors: A005381, A054265, A068780, A373403, A373405, A373411, A373412. %Y A373404 A000040 lists the primes, differences A001223. %Y A373404 A002808 lists the composite numbers, differences A073783. %Y A373404 A046933 counts composite numbers between primes. %Y A373404 A065855 counts composite numbers up to n. %Y A373404 Cf. A003114, A027833, A038664, A293697, A350842 (strict A350844), A371201. %K A373404 nonn %O A373404 1,1 %A A373404 _Gus Wiseman_, Jun 05 2024 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE