A142242 Row sums of A143200.

1, 2, 2, 0, 2, 0, 0, -4, 2, 0, 0, -4, 0, -4, -4, -12, 2, 0, 0, -4, 0, -4, -4, -12, 0, -4, -4, -12, -4, -12, -12, -28, 2, 0, 0, -4, 0, -4, -4, -12, 0, -4, -4, -12, -4, -12, -12, -28, 0, -4, -4, -12, -4, -12, -12, -28, -4, -12, -12, -28, -12, -28, -28, -60, 2, 0, 0, -4, 0, -4, -4, -12

Offset

0,2

Links

Table of n, a(n) for n=0..71.

Formula

a(n) = 4 - 2^A000120(n) for n > 0. [Max Alekseyev, Apr 27 2010]

Crossrefs

Cf. A000120, A143200.

Sequence in context: A065710 A089799 A073464 * A362634 A050314 A316344

Adjacent sequences: A142239 A142240 A142241 * A142243 A142244 A142245

Keyword

sign,easy

Author

Roger L. Bagula and Gary W. Adamson, Oct 20 2008

Extensions

More terms from Max Alekseyev, Apr 27 2010

a(0)=1 prepended by Georg Fischer, Mar 19 2024

Status

approved