The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A034871 Odd-numbered rows of Pascal's triangle. 5
 1, 1, 1, 3, 3, 1, 1, 5, 10, 10, 5, 1, 1, 7, 21, 35, 35, 21, 7, 1, 1, 9, 36, 84, 126, 126, 84, 36, 9, 1, 1, 11, 55, 165, 330, 462, 462, 330, 165, 55, 11, 1, 1, 13, 78, 286, 715, 1287, 1716, 1716, 1287, 715, 286, 78, 13, 1, 1, 15, 105, 455, 1365, 3003, 5005 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS Eduardo H. M. Brietzke, Generalization of an identity of Andrews, Fibonacci Quart. 44 (2006), no. 2, 166-171. FORMULA G.f.: (1+y)/(1-x*(1+y)^2). - Vladimir Kruchinin, Nov 22 2020 MATHEMATICA Take[Table[Binomial[n, m], {n, 0, 20}, {m, 0, n}], {2, -1, 2}]//Flatten (* Harvey P. Dale, Dec 10 2018 *) PROG (Haskell) a034871 n = a034871_list !! n a034871_list = concat \$ map ([1, 1] ^) [1, 3..] instance Num a => Num [a] where    fromInteger k = [fromInteger k]    (p:ps) + (q:qs) = p + q : ps + qs    ps + qs         = ps ++ qs    (p:ps) * qs'@(q:qs) = p * q : ps * qs' + [p] * qs    _ * _               = [] -- Reinhard Zumkeller, Apr 02 2011 CROSSREFS Cf. A007318, A034870. Sequence in context: A196493 A251634 A196989 * A333758 A015109 A319699 Adjacent sequences:  A034868 A034869 A034870 * A034872 A034873 A034874 KEYWORD nonn,tabf,easy AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 22 19:11 EDT 2021. Contains 343177 sequences. (Running on oeis4.)