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 A155586 A modified Catalan sequence array. 1
 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 5, 2, 1, 1, 1, 14, 5, 2, 1, 1, 1, 42, 14, 5, 2, 1, 1, 1, 132, 42, 14, 5, 2, 1, 1, 1, 429, 132, 42, 14, 5, 2, 1, 1, 1, 1430, 429, 132, 42, 14, 5, 2, 1, 1, 1, 4862, 1430, 429, 132, 42, 14, 5, 2, 1, 1, 1, 16796, 4862, 1430, 429, 132, 42, 14, 5, 2, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,8 COMMENTS Row sums are A155587. Stieltjes associate array to A091491. LINKS FORMULA Number triangle T(n,k)=[k<=n]*if(k=0,1,A000108(n-k)) EXAMPLE Triangle begins 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 5, 2, 1, 1, 1, 14, 5, 2, 1, 1, 1, 42, 14, 5, 2, 1, 1, 1, 132, 42, 14, 5, 2, 1, 1, 1, 429, 132, 42, 14, 5, 2, 1, 1, 1, 1430, 429, 132, 42, 14, 5, 2, 1, 1 CROSSREFS Sequence in context: A260148 A099940 A157249 * A069739 A066060 A008550 Adjacent sequences:  A155583 A155584 A155585 * A155587 A155588 A155589 KEYWORD easy,nonn,tabl AUTHOR Paul Barry, Jan 24 2009 STATUS approved

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Last modified January 19 03:41 EST 2019. Contains 319284 sequences. (Running on oeis4.)