id:A004441 - OEIS Search Results

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Numbers that are not the sum of 4 distinct nonzero squares.

+0
3

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 47, 48, 49, 52, 53, 55, 56, 58, 59, 60, 61, 64, 67, 68 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`It has been shown that 157 is the last odd number in this sequence. Beyond 157, the terms grow exponentially. - T. D. Noe, Apr 07 2007`
	REFERENCES	`Paul T. Bateman, Adolf J. Hildebrand and George B. Purdy, Sums of distinct squares. Acta Arith. 67 (1994), 349-380.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000 (using A004195 and A004196)` `Index entries for sequences related to sums of squares`
	CROSSREFS	`Cf. A004195, A004196.` `Sequence in context: A123068 A160547 A070915 this_sequence A004438 A109425 A153679` `Adjacent sequences: A004438 A004439 A004440 this_sequence A004442 A004443 A004444`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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