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A076672 Smallest a(n)>a(n-1) such that a(n)^2+a(n-1)^2 is a perfect square, a(1)=6. +0
1
6, 8, 15, 20, 21, 28, 45, 60, 63, 84, 112, 180, 189, 252, 275, 660, 693, 924, 1232, 1326, 1768, 1974, 2632, 4026, 5368, 6405, 8200, 8319, 11092, 11715, 15620, 16401, 19720, 20706, 20880, 20910, 24752, 24960, 25300, 26565, 29716 (list; graph; listen)
OFFSET

1,1
COMMENT

The sequence is infinite.

CROSSREFS

Cf. A076600.

Sequence in context: A067795 A066160 A100914 this_sequence A063534 A162651 A022320

Adjacent sequences: A076669 A076670 A076671 this_sequence A076673 A076674 A076675

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Oct 25 2002

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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