id:A089717 - OEIS Search Results

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Triangular numbers with palindromic indices.

+0
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	OFFSET	`1,3`
	FORMULA	`a(n) = A000217(A002113(n)).`
	CROSSREFS	`Cf. A008509.` `Sequence in context: A025715 A165145 A046489 this_sequence A050760 A075057 A069792` `Adjacent sequences: A089714 A089715 A089716 this_sequence A089718 A089719 A089720`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Nov 24 2004`
	EXTENSIONS	`Definition corrected by Lambert.Klasen and David Wasserman, Oct 04 2005` `More terms from David Wasserman (wasserma(AT)spawar.navy.mil) and Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Oct 04 2005`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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