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A086406 Main diagonal of number array A086404. 1
1, 2, 11, 84, 857, 10984, 169803, 3076688, 63968273, 1501465248, 39277112843, 1133193163840, 35748951528681, 1224258310112384, 45233097633685643, 1793524939926112512, 75966131556225961121, 3423203234058532082176 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n)=(n-sqrt(3))^n(1/2-sqrt(3)/6)+(n+sqrt(3))^n(1/2+sqrt(3)/6)
CROSSREFS
Cf. A086352.
Sequence in context: A191805 A363563 A279202 * A158098 A104185 A074604
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jul 19 2003
STATUS
approved

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Last modified May 25 14:28 EDT 2024. Contains 372788 sequences. (Running on oeis4.)