id:A137239 - OEIS Search Results

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a(n)= number of Catalan numbers with n digits.

+0
1

4, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 1, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`1-digit Catalan numbers are 1,1,2,5 so a(1)=4` `2-digits Catalan numbers are 14,24 so a(2)=2`
	CROSSREFS	`Cf. A000108.` `Sequence in context: A102888 A071558 A136709 this_sequence A136714 A010314 A080133` `Adjacent sequences: A137236 A137237 A137238 this_sequence A137240 A137241 A137242`
	KEYWORD	`nonn,base,easy,more`
	AUTHOR	`Ctibor O. ZIZKA (ctibor.zizka(AT)seznam.cz), Mar 09 2008`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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