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 A092241 Triangle read by rows: row n gives coefficients of (1+x+x^2)^n mod n. 1
 0, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 2, 0, 3, 0, 2, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 3, 2, 0, 0, 3, 0, 0, 2, 3, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 4, 0, 2, 0, 0, 0, 3, 0, 0, 0, 2, 0, 4, 0, 1, 1, 0, 0, 3, 0, 0, 6, 0, 0, 7, 0, 0, 6, 0, 0, 3, 0, 0, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,19 LINKS EXAMPLE Triangle begins: [0] [0, 0, 0] [1, 0, 1, 0, 1] [1, 0, 0, 1, 0, 0, 1] [1, 0, 2, 0, 3, 0, 2, 0, 1] [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1] [1, 0, 3, 2, 0, 0, 3, 0, 0, 2, 3, 0, 1] MAPLE f := n -> seriestolist( series( expand( (1+x+x^2)^n ) mod n, x, 2*n+1)); CROSSREFS Cf. A053200. Sequence in context: A238801 A095704 A163496 * A336124 A256580 A213266 Adjacent sequences:  A092238 A092239 A092240 * A092242 A092243 A092244 KEYWORD nonn,tabf AUTHOR N. J. A. Sloane, Feb 20 2004 STATUS approved

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Last modified January 19 01:11 EST 2021. Contains 340262 sequences. (Running on oeis4.)