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

Author

Reinhard Zumkeller, Feb 25 2012

Keywords

• nonn

Links

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

Programs

Haskell

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

Formula

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