[seqfan] Re: [math-fun] Triangular+Triangular = Factorial

N. J. A. Sloane njas at research.att.com
Wed Oct 13 04:08:07 CEST 2010

I see Georgi Guninski has factored 4*(93!)+1 !
Could someone kindly send in the appropriate updates for these sequence:

factorial numbers, as a sum of two triangular numbers: A180590. A152089, A171099

(that's from the Index to the OEIS)



>Date: Mon, 11 Oct 2010 22:11:32 +0300
>From: Georgi Guninski <guninski at guninski.com>
>Subject: [seqfan] Re: [math-fun] Triangular+Triangular = Factorial
>4*(93!)+1 factors as:


>the sequence is ready to 109:


>list of factors is at:

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