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 A244363 Number of toothpicks added at n-th stage in the toothpick structure of the symmetric representation of sigma in the first quadrant (without the axis x and y). 10
 2, 4, 6, 8, 8, 12, 10, 16, 16, 20, 14, 24, 16, 26, 26, 32, 20, 36, 22, 40, 36, 38, 26, 48, 34, 44, 44, 56 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Partial sums give A244362. - Omar E. Pol, Oct 18 2014 a(n) is also the sum of semiperimeters of the parts of the symmetric representation of sigma(n). - Omar E. Pol, Dec 11 2016 LINKS FORMULA a(n) = 2*A244361(n). a(n) = A244371(n)/4. - Omar E. Pol, Oct 18 2014 a(n) = A274919(n)/2. - Omar E. Pol, Dec 11 2016 CROSSREFS Cf. A000203, A196020, A237270, A237271, A237593, A244360, A244361, A244362, A244370, A244371, A245092, A262626, A274919. Sequence in context: A115158 A107634 A060659 * A063199 A219028 A062355 Adjacent sequences:  A244360 A244361 A244362 * A244364 A244365 A244366 KEYWORD nonn,more AUTHOR Omar E. Pol, Jun 26 2014 EXTENSIONS More terms from Omar E. Pol, Oct 18 2014 STATUS approved

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Last modified December 11 07:38 EST 2019. Contains 329914 sequences. (Running on oeis4.)