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A137400 a(n) = A128941(n) + 2. 1
6, 30, 140, 631, 2786, 12136, 52368, 224406, 956516, 4060038, 17175132, 72454075, 304941386, 1280898304, 5371301504, 22491017758, 94055344244, 392888085100, 1639534704632, 6835739258998, 28477594607348, 118551827347576 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
CROSSREFS
Cf. A128941.
Sequence in context: A092439 A082149 A002457 * A220830 A199938 A285195
KEYWORD
nonn
AUTHOR
Lyle Ramshaw (lyle.ramshaw(AT)hp.com), Apr 08 2008
STATUS
approved

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Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)