A105536 Row sums of triangular matrix A105535, in which diagonal n equals A105535^(n+1) when flattened as read by rows.

1, 2, 4, 6, 12, 21, 32, 52, 83, 127, 185, 273, 436, 774, 1484, 2965, 6048, 12472, 25802, 53243, 109300, 223098, 453053, 916286, 1847403, 3716038, 7462007, 14965615, 29988282, 60053870, 120211757, 240564502, 481327461, 962960919, 1926473259

Offset

0,2

Comments

The ratio of consecutive row sums seems to converge to a value near 2.

Links

Table of n, a(n) for n=0..34.

Crossrefs

Cf. A105535.

Sequence in context: A047141 A341858 A105541 * A328079 A321739 A073660

Adjacent sequences: A105533 A105534 A105535 * A105537 A105538 A105539

Keyword

nonn

Author

Paul D. Hanna, Apr 12 2005

Status

approved