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 A330551 Gasket based on primes: take array read by diagonals from Gilbreath conjecture, omitting the initial row of primes (A036261) and replace all nonzero entries with 0's and all 0's with 1's. 3
 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1 REFERENCES Lakhtakia, Akhlesh. "A simple gasket derived from prime numbers." Computers & graphics 13.1 (1989): 57-58. LINKS EXAMPLE The original array (before changing the entries) is: 1 2 2 4 2 4 2 4 6 2 6 4 2 4 6 6 2 6 4 2 6 4 6 8 4 2 1 0 2 2 2 2 2 2 4 4 2 2 2 2 0 4 4 2 2 4 2 2 2 4 2 2 1 2 0 0 0 0 0 2 0 2 0 0 0 2 4 0 2 0 2 2 0 0 2 2 0 0 1 2 0 0 0 0 2 2 2 2 0 0 2 2 4 2 2 2 0 2 0 2 0 2 0 0 1 2 0 0 0 2 0 0 0 2 0 2 0 2 2 0 0 2 2 2 2 2 2 2 0 8 1 2 0 0 2 2 0 0 2 2 2 2 2 0 2 0 2 0 0 0 0 0 0 2 8 8 1 2 0 2 0 2 0 2 0 0 0 0 2 2 2 2 2 0 0 0 0 0 2 6 0 8 1 2 2 2 2 2 2 2 0 0 0 2 0 0 0 0 2 0 0 0 0 2 4 6 8 6 1 0 0 0 0 0 0 2 0 0 2 2 0 0 0 2 2 0 0 0 2 2 2 2 2 4 ... CROSSREFS Cf. A036261, A036262, A330548, A330549, A330550. Sequence in context: A011666 A011669 A023971 * A346618 A079260 A354031 Adjacent sequences:  A330548 A330549 A330550 * A330552 A330553 A330554 KEYWORD nonn,tabl AUTHOR N. J. A. Sloane, Dec 20 2019 STATUS approved

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Last modified May 20 16:35 EDT 2022. Contains 353875 sequences. (Running on oeis4.)