A157217 Mix A091411 and its differences.

1, 2, 3, 6, 9, 10, 19, 28, 47, 51, 98, 122, 220, 221, 441, 444, 885, 886, 1771, 1780, 3551, 3555, 7106, 7173, 14279, 14280, 28559, 28562, 57121, 57122, 114243, 114252, 228495, 228499, 456994, 457018, 914012, 914013, 1828025, 1828028, 3656053, 3656054, 7312107, 7312116

Offset: 0

Author

Paul Curtz, Feb 25 2009

Keywords

• nonn
• less

Comments

First differences: 1, 1, 3, 3, 1, 9, 9, 19, 4, 47, ....

Formula

a(2n) = A091441(n+1). a(2n-1) = A091441(n+1)-A091441(n).