A259525 First differences of A007318, when Pascal's triangle is seen as flattened list.

0, 0, 0, 1, -1, 0, 2, 0, -2, 0, 3, 2, -2, -3, 0, 4, 5, 0, -5, -4, 0, 5, 9, 5, -5, -9, -5, 0, 6, 14, 14, 0, -14, -14, -6, 0, 7, 20, 28, 14, -14, -28, -20, -7, 0, 8, 27, 48, 42, 0, -42, -48, -27, -8, 0, 9, 35, 75, 90, 42, -42, -90, -75, -35, -9, 0, 10, 44, 110

Offset

0,7

Comments

A214292 gives first differences per row in Pascal's triangle.

Links

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

Index entries for triangles and arrays related to Pascal's triangle

Prog

(Haskell)
a259525 n = a259525_list !! n
a259525_list = zipWith (-) (tail pascal) pascal
                           where pascal = concat a007318_tabl

Crossrefs

Cf. A007318, A214292, A014473, A163866.

Sequence in context: A242460 A144494 A136166 * A319071 A316432 A046522

Adjacent sequences: A259522 A259523 A259524 * A259526 A259527 A259528

Keyword

sign

Author

Reinhard Zumkeller, Jul 18 2015

Status

approved