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A133516 Recurring combinations: a(n) = C(a(n-1),a(n-2)). 0
2, 5, 10, 252, 237517990691968350 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
A049022 is the same formula, but with initial values 2, 4.
LINKS
MATHEMATICA
nxt[{a_, b_}]:={b, Binomial[b, a]}; Transpose[NestList[nxt, {2, 5}, 4]][[1]] (* Harvey P. Dale, Jan 23 2015 *)
CROSSREFS
Cf. A049022.
Sequence in context: A018773 A174475 A133035 * A342489 A342612 A342490
KEYWORD
easy,nonn
AUTHOR
Jonathan Vos Post, Nov 30 2007
EXTENSIONS
Corrected by Harvey P. Dale, Jan 23 2015
STATUS
approved

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Last modified February 29 14:40 EST 2024. Contains 370425 sequences. (Running on oeis4.)