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 A096423 a(1)=a(2)=1, a(n) = (a(n-1)+1)*(a(n-2)+1) for n > 2. 0
 1, 1, 4, 10, 55, 616, 34552, 21319201, 736642386706, 15704627843968647814, 11568694537326272321321120595205, 181682042349262169758803442669575561298555791374890 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS The terms have an interesting factorization pattern, often sharing factors. The next term (a(13)) has 82 digits. - Harvey P. Dale, Feb 27 2015 LINKS Table of n, a(n) for n=1..12. MATHEMATICA RecurrenceTable[{a[1]==a[2]==1, a[n]==(a[n-1]+1)(a[n-2]+1)}, a, {n, 15}] (* Harvey P. Dale, Feb 27 2015 *) CROSSREFS Sequence in context: A192444 A197902 A276123 * A276130 A263044 A013589 Adjacent sequences: A096420 A096421 A096422 * A096424 A096425 A096426 KEYWORD nonn AUTHOR Gerald McGarvey, Aug 08 2004 STATUS approved

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Last modified June 9 00:10 EDT 2023. Contains 363165 sequences. (Running on oeis4.)