A009475 "Pascal sweep" for k=6: 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, 7, 21, 36, 8, 64, 9, 57, 36, 10, 1, 232, 1, 12, 55, 121, 13, 193, 14, 166, 78, 15, 1, 594, 1, 17, 105, 287, 18, 451, 19, 365, 136, 20, 1, 1251, 1, 22, 171, 561, 23, 906, 24, 681, 210, 25, 1, 2327, 1, 27, 253, 970, 28, 1642, 29, 1141, 300, 30, 1, 3969, 1, 32, 351, 1541, 33

Offset

1,2

Links

Table of n, a(n) for n=1..65.

Crossrefs

Sequence in context: A031008 A147587 A208543 * A063292 A045524 A125228

Adjacent sequences: A009472 A009473 A009474 * A009476 A009477 A009478

Keyword

nonn

Author

David W. Wilson

Status

approved