A019304 "Pascal sweep" for k=3: draw a horizontal line through the 1 at C(k,0) in Pascal's triangle; rotate this line and record the sum of the numbers on it (excluding the initial 1).

1, 4, 1, 12, 1, 6, 1, 18, 1, 8, 1, 25, 1, 10, 1, 33, 1, 12, 1, 42, 1, 14, 1, 52, 1, 16, 1, 63, 1, 18, 1, 75, 1, 20, 1, 88, 1, 22, 1, 102, 1, 24, 1, 117, 1, 26, 1, 133, 1, 28, 1, 150, 1, 30, 1, 168, 1, 32, 1, 187, 1, 34, 1, 207, 1, 36, 1, 228, 1, 38, 1, 250, 1, 40, 1, 273, 1, 42, 1, 297, 1, 44, 1

Offset

0,2

Links

Table of n, a(n) for n=0..82.

Crossrefs

Sequence in context: A143952 A097877 A225770 * A072869 A369905 A064279

Adjacent sequences: A019301 A019302 A019303 * A019305 A019306 A019307

Keyword

nonn

Author

Jonas Wallgren

Extensions

More terms from David W. Wilson.

Status

approved