A177144 A156790(n+1)-4*A156790(n).

1, 4, 9, 19, 38, 69, 134, 289, 520, 1076, 2134, 4098, 8376, 16559, 33020, 66114, 132119, 263585, 525765, 1050309, 2097946, 4199226, 8394235, 16785959

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Crossrefs

Cf. A156790.

Sequence in context: A133649 A301088 A301089 * A266370 A101353 A008135

Adjacent sequences: A177141 A177142 A177143 * A177145 A177146 A177147

Keyword

nonn

Author

Jaume Oliver Lafont, May 03 2010

Status

approved