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A173271
Partial sums of A000105.
2
1, 2, 3, 5, 10, 22, 57, 165, 534, 1819, 6474, 23547, 87147, 325738, 1227709, 4654285, 17733540, 67841449, 260463501, 1003087733, 3873759683, 14996820361, 58188678049, 226235685777, 881235386180, 3438462430944, 13437551253019
OFFSET
0,2
LINKS
John Mason, Table of n, a(n) for n = 0..50 (terms 0..48 from Jean-François Alcover).
FORMULA
a(n) = A130866(n) + 1. - John Mason, Feb 21 2023
MATHEMATICA
Cases[Import["https://oeis.org/A000105/b000105.txt", "Table"], {_, _}][[All, 2]] // Accumulate (* Jean-François Alcover, Aug 17 2022 *)
CROSSREFS
Sequence in context: A014844 A307264 A329244 * A326574 A280019 A063253
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Feb 14 2010
STATUS
approved