A100555 - OEIS

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A100555

Smallest square that is equal to the sum of n not-necessarily-distinct primes plus 1.

1, 4, 9, 9, 9, 16, 16, 16, 25, 25, 25, 25, 25, 36, 36, 36, 36, 36, 49, 49, 49, 49, 49, 49, 49, 64, 64, 64, 64, 64, 64, 64, 81, 81, 81, 81, 81, 81, 81, 81, 81, 100, 100, 100, 100, 100, 100, 100, 100, 100, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 121, 144, 144 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	EXAMPLE	`a(1)=4 because 2^2=1+3.` `a(2)=9 because 3^2=1+3+5.` `a(3)=9 because 3^2=1+2+3+3.` `a(4)=9 because 3^2=1+2+2+2+2.`
	CROSSREFS	`Cf. A100498, A101776-A101778.` `Sequence in context: A011512 A200642 A157300 * A186887 A140978 A106410` `Adjacent sequences: A100552 A100553 A100554 * A100556 A100557 A100558`
	KEYWORD	`nonn`
	AUTHOR	`Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 31 2004`
	EXTENSIONS	`Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jan 10 2005`

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Last modified February 16 01:31 EST 2012. Contains 205860 sequences.