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A052201 Equivalent of the Kurepa hypothesis for left factorial. 0
4, 15, 48, 175, 816, 4851, 34960, 292743, 2774040, 29251651, 339184776, 4285584615, 58571107168, 860622082035, 13525670637216, 226358825764711, 4018390654376520, 75413358213752643, 1491684815796629080, 31014754853346045831, 676190458445520562896 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..21.

Romeo Mestrovic, Variations of Kurepa's left factorial hypothesis, arXiv preprint arXiv:1312.7037 [math.NT], 2013.

Romeo Mestrovic, The Kurepa-Vandermonde matrices arising from Kurepa's left factorial hypothesis, Filomat 29:10 (2015), 2207-2215; DOI 10.2298/FIL1510207M.

FORMULA

a(1)=4, a(2)=15, a(3)=48, a(n) = (n+1)*( a(n-1)-a(n-3)) - 3*a(n-2).

a(n) = (n+3)*A051403(n-1). - Mohammed Bouras, Aug 05 2022

CROSSREFS

Cf. A051403.

Sequence in context: A227099 A225976 A093967 * A320460 A178704 A099167

Adjacent sequences: A052198 A052199 A052200 * A052202 A052203 A052204

KEYWORD

nonn,easy

AUTHOR

Aleksandar Petojevic, Jan 28 2000

EXTENSIONS

More terms from James A. Sellers, Jan 31 2000

STATUS

approved

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Last modified December 8 06:47 EST 2022. Contains 358673 sequences. (Running on oeis4.)