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A064406
Partial sums of A064405.
0
-1, -3, -4, -8, -7, -9, -10, -18, -13, -11, -8, -12, -7, -9, -10, -26, -13, -3, 8, 12, 25, 31, 38, 30, 47, 57, 68, 64, 77, 75, 74, 42, 71, 97, 124, 144, 173, 195, 218, 226, 259, 285, 312, 324, 353, 367, 382, 366, 407, 441, 476, 496, 533, 555, 578, 570, 611, 637, 664, 660, 689, 687, 686, 622, 683, 741, 800, 852, 913, 967
OFFSET
0,2
COMMENTS
Previous name was: The accumulation of the number of even entries (A048967) over the number of odd entries (A001316) in row n of Pascal's triangle (A007318).
REFERENCES
Tony Colledge, "Pascal's Triangle, A teacher's guide with blackline masters," Tarquin Publications, Norfolk, England, Second Edition, 1997, page 9.
MATHEMATICA
a[ n_ ] := n + 1 - 2*Sum[ Mod[ Binomial[ n, k ], 2 ], {k, 0, n} ];
Table[ Sum[ a[ k ], {k, 0, n} ], {n, 0, 100} ]
CROSSREFS
Partial sums of A064405.
Sequence in context: A255700 A255697 A019972 * A299068 A344867 A049826
KEYWORD
easy,sign
AUTHOR
Robert G. Wilson v, Sep 29 2001
EXTENSIONS
New name from Sean A. Irvine, Jul 05 2023
STATUS
approved