id:A127390 - OEIS Search Results

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Sum of all n-digit highly composite numbers.

+0
3

13, 180, 2460, 18060, 332640, 3548160, 37837800, 311351040, 3455131680, 32639967360, 479785466160, 3379449593520, 44734582292400, 527257688958000, 3493634344200000, 31840983413038800, 408373247583100800 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Robert G. Wilson v, Table of n, a(n) for n = 0..76.` `Graeme McRae, Highly Composite Numbers` `S. Ramanujan, Highly Composite Numbers.`
	EXAMPLE	`If n=1 then the sum of the highly composite numbers 1+2+4+6 = 13 which is the first term in the sequence.` `If n=2 then the sum of the highly composite numbers 12+24+36+48+60 = 180 which is the second term in the sequence.`
	CROSSREFS	`Cf. A002182.` `Sequence in context: A096719 A109392 A132386 this_sequence A142646 A083576 A122571` `Adjacent sequences: A127387 A127388 A127389 this_sequence A127391 A127392 A127393`
	KEYWORD	`nonn,base`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Mar 30 2007`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 08 2007`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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