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 A143276 Triangle read by rows, A054525 * A054523, 1<=k<=n. 1
 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 3, 0, 0, 0, 1, 0, 5, 10, 0, 0, 1, 5, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 1, 4, 0, 1, 0, 0, 0, 0, 0, 1, 0, 3, 0, 0, 0, 0, 0, 0, 0, 1, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,11 COMMENTS Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6,...). Left border = A007431: (1, 0, 1, 1, 3, 0, 5, 2, 4,...). LINKS FORMULA Triangle read by rows, Mobius transform of triangle A054523. EXAMPLE First few rows of the triangle = 1; 0, 1; 1, 0, 1; 1, 0, 0, 1; 3, 0, 0, 0, 1; 0, 1, 0, 0, 0, 1; 5, 0, 0, 0, 0, 0, 1; 2, 1, 0, 0, 0, 0, 0, 1; ... CROSSREFS Cf. A054525, A054523, A000010, A007431. Sequence in context: A083206 A069531 A035677 * A283470 A101941 A089313 Adjacent sequences:  A143273 A143274 A143275 * A143277 A143278 A143279 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Aug 03 2008 STATUS approved

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Last modified October 24 00:04 EDT 2018. Contains 316541 sequences. (Running on oeis4.)