id:A153750 - OEIS Search Results

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Numbers n such that there are 14 digits in n^2 and for each factor f of 14 (1,2,7) the sum of digit groupings of size f is a square.

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3196200, 3330249, 3330348, 3330480, 3330801, 3331071, 3331367, 3331695, 3331731, 3331758, 3331803, 3331830, 3331860, 3331866, 3331929, 3331995, 3332025, 3332058, 3332061, 3332091, 3332124, 3332127, 3332160, 3332190 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`This series is a subset of both A153745 and A061910.`
	EXAMPLE	`3331367^2 = 11098006088689` `1+1+0+9+8+0+0+6+0+8+8+6+8+9 = 64 = 8^2` `11+09+80+06+08+86+89 = 289 = 17^2` `1109800+6088689 = 7198489 = 2683^2`
	CROSSREFS	`Sequence in context: A032783 A034638 A122034 this_sequence A029820 A146976 A138360` `Adjacent sequences: A153747 A153748 A153749 this_sequence A153751 A153752 A153753`
	KEYWORD	`nonn,base`
	AUTHOR	`Doug Bell (bell.doug(AT)gmail.com), Dec 31 2008`

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

AT&T Labs Research