id:A063178 - OEIS Search Results

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Hexagonal spiral sequence: sequence is written as a hexagonal spiral around a `dummy' center, each entry is the sum of the row in the previous direction containing the previous entry.

+0
4

1, 1, 2, 3, 5, 8, 10, 23, 33, 42, 98, 110, 250, 286, 646, 749, 1681, 1939, 2059, 6428, 7097, 15584, 17556, 19279, 59516, 66042, 68211, 213048, 230854, 246724, 758837, 825525, 885790, 2716876, 2949411, 3164398, 3234668, 12951143, 13783096 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`F.M. van Lamoen, Spiral recurrence.`
	EXAMPLE	`The spiral starts` `.........5...3..` `.......8...*...2..` `....10...1...1...98` `.......23..33..42`
	CROSSREFS	`Cf. A063177, A062410.` `Sequence in context: A122633 A004694 A023176 this_sequence A028891 A028890 A002480` `Adjacent sequences: A063175 A063176 A063177 this_sequence A063179 A063180 A063181`
	KEYWORD	`nonn,nice`
	AUTHOR	`Floor van Lamoen (fvlamoen(AT)hotmail.com), Jul 09 2001`

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Last modified December 4 14:15 EST 2008. Contains 151279 sequences.

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