A208134 Number of zeros in n-th row of Pascal's triangle mod 10 (A008975).

0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 6, 2, 2, 0, 0, 0, 9, 6, 3, 0, 14, 10, 6, 2, 0, 18, 17, 12, 15, 10, 13, 0, 21, 18, 15, 24, 23, 18, 13, 10, 31, 22, 17, 10, 5, 24, 17, 6, 9, 0, 42, 34, 38, 30, 30, 22, 39, 30, 27, 16, 38, 20, 18, 0, 20, 52, 41, 30, 19, 10, 50, 34

Offset

0,6

Links

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

Formula

a(n) = sum (0 ^ A008975(n,k): k = 0..n).

Prog

(Haskell)
a208134 = length . filter (== 0) . a008975_row

Crossrefs

Sequence in context: A306607 A268611 A092147 * A175560 A143240 A363338

Adjacent sequences: A208131 A208132 A208133 * A208135 A208136 A208137

Keyword

nonn

Author

Reinhard Zumkeller, Feb 25 2012

Status

approved