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A092883 Number of ordered 5-multiantichains on an n-set. 4
1, 2, 34, 578, 17986, 914402, 58418434, 3647772578, 201049121986, 9759193797602, 427502097160834, 17322219545580578, 662151305878673986, 24232906768942216802, 858385300154461279234, 29668082426391129084578 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = 32^n - 20*24^n + 60*20^n + 20*18^n + 10*17^n - 100*16^n - 120*15^n + 150*14^n + 120*13^n - 360*12^n + 20*11^n + 480*10^n + 80*9^n - 360*8^n + 120*7^n - 720*6^n + 720*5^n + 250*4^n - 500*3^n + 150*2^n.
MATHEMATICA
Table[32^n - 20*24^n + 60*20^n + 20*18^n + 10*17^n - 100*16^n - 120*15^n + 150*14^n + 120*13^n - 360*12^n + 20*11^n + 480*10^n + 80*9^n - 360*8^n + 120*7^n - 720*6^n + 720*5^n + 250*4^n - 500*3^n + 150*2^n, {n, 0, 50}] (* G. C. Greubel, Oct 06 2017 *)
PROG
(PARI) for(n=0, 50, print1(32^n - 20*24^n + 60*20^n + 20*18^n + 10*17^n - 100*16^n - 120*15^n + 150*14^n + 120*13^n - 360*12^n + 20*11^n + 480*10^n + 80*9^n - 360*8^n + 120*7^n - 720*6^n + 720*5^n + 250*4^n - 500*3^n + 150*2^n, ", ")) \\ G. C. Greubel, Oct 06 2017
(Magma) [32^n - 20*24^n + 60*20^n + 20*18^n + 10*17^n - 100*16^n - 120*15^n + 150*14^n + 120*13^n - 360*12^n + 20*11^n + 480*10^n + 80*9^n - 360*8^n + 120*7^n - 720*6^n + 720*5^n + 250*4^n - 500*3^n + 150*2^n: n in [0..40]]; // G. C. Greubel, Oct 06 2017
CROSSREFS
Sequence in context: A098704 A119298 A045585 * A134495 A173208 A344107
KEYWORD
nonn
AUTHOR
Goran Kilibarda, Vladeta Jovovic, Mar 10 2004
STATUS
approved

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Last modified July 14 01:31 EDT 2024. Contains 374290 sequences. (Running on oeis4.)