A308516 - OEIS

A308516

Odd numbers which are not squares and cannot be written as a sum of a prime and a square.

85, 91, 771, 1255, 1351, 21679 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`The sequence is probably finite. a(7) > 2000000 (if it exists).` `a(7) > 1.5*10^11, if it exists. - Giovanni Resta, Jul 16 2019`
	LINKS	`Table of n, a(n) for n=1..6.`
	CROSSREFS	`A subsequence of A020495.` `Cf. A014090, A065377.` `Sequence in context: A020312 A156650 A044978 * A095593 A039487 A157469` `Adjacent sequences: A308513 A308514 A308515 * A308517 A308518 A308519`
	KEYWORD	`nonn,more`
	AUTHOR	`Daniel Starodubtsev, Jun 03 2019`
	STATUS	`approved`

Last modified July 6 11:27 EDT 2022. Contains 355110 sequences. (Running on oeis4.)