A009522 "Pascal sweep" for k=8: 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, 9, 36, 84, 127, 10, 171, 1, 120, 11, 350, 12, 165, 1, 318, 13, 331, 220, 78, 14, 1, 1596, 1, 16, 105, 364, 716, 17, 912, 1, 455, 18, 1600, 19, 560, 1, 1440, 20, 1366, 680, 171, 21, 1, 5895, 1, 23, 210, 969, 2381, 24, 3234, 1, 1140, 25, 5030, 26, 1330, 1, 4644, 27, 3877

Offset

1,2

Links

Table of n, a(n) for n=1..61.

Crossrefs

Sequence in context: A230212 A229394 A173682 * A045851 A173243 A162258

Adjacent sequences: A009519 A009520 A009521 * A009523 A009524 A009525

Keyword

nonn

Author

David W. Wilson

Status

approved