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A355189 Factorial splitting: write n! = x*y*z with x <= y <= z and minimal z-x; sequence gives value of x. 4
1, 1, 1, 1, 2, 4, 8, 14, 32, 70, 140, 324, 768, 1800, 4368, 10800, 27300, 70560, 184800, 494208, 1343680, 3704400, 10388250, 29560960, 85250880, 249318000, 738720000, 2216160000, 6729074352, 20675655000, 64245312000, 201819656500, 640760440320 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,5
COMMENTS
Apparently we have x < y < z for all n > 9. If so, using strict inequalities x < y < z in the definition would make the sequence undefined for n < 3 and affect only a(9) by switching from 9! = 70*72*72 to 9! = 63*72*80.
LINKS
CROSSREFS
Sequence in context: A337500 A061297 A130711 * A093483 A028398 A359695
KEYWORD
nonn
AUTHOR
Max Alekseyev, Jun 23 2022
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)