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 A143536 Triangle read by rows, T(n,k) = 1 if n is prime, 0 otherwise. 3
 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row sums = A061397: (0, 2, 3, 0, 5, 0, 7,...). LINKS Reinhard Zumkeller, Rows n = 1..125 of table, flattened FORMULA Triangle read by rows, T(n,k) = 1 if n is prime, 0 otherwise. Mobius transform (A054525) of triangle A143535. EXAMPLE First few rows of the triangle = 0; 1, 1; 1, 1, 1; 0, 0, 0, 0; 1, 1, 1, 1, 1; 0, 0, 0, 0, 0, 0; 1, 1, 1, 1, 1, 1, 1; ... PROG (Haskell) a143536 n k = a143536_tabl !! (n-1) !! (k-1) a143536_row n = a143536_tabl !! (n-1) a143536_tabl = zipWith take [1..] \$ map repeat a010051_list -- Reinhard Zumkeller, Mar 21 2014 CROSSREFS Cf. A143535, A061397. Cf. A010051. Sequence in context: A276398 A204549 A112713 * A204437 A080110 A286419 Adjacent sequences:  A143533 A143534 A143535 * A143537 A143538 A143539 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Aug 23 2008 STATUS approved

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Last modified May 7 12:05 EDT 2021. Contains 343650 sequences. (Running on oeis4.)