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A130683 (Naturals^m; m=1,2,3....) m=1: 1,2,3,... and make the sum of pairs (1+2),(3+4),(5+6)... we get: 3,7,11... Now find the difference of pairs: (7-3),(11-7),... we get 4,4,4,4,..... Now do the same for next exponent, m=2: 1,4,9,16... getting 5,25,61... that is (1+4),(9+16)... and the differences 20,36... we get 16,16,16,16,... m=3: ... we get 96 and so on. 0
4, 16, 96, 1728, 7680, 92160 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..5.

CROSSREFS

Sequence in context: A027745 A032184 A111976 * A236772 A209299 A091040

Adjacent sequences:  A130680 A130681 A130682 * A130684 A130685 A130686

KEYWORD

easy,nonn,uned

AUTHOR

Gil Costa (gilpratacosta(AT)gmail.com), Jun 29 2007

STATUS

approved

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Last modified December 7 14:52 EST 2016. Contains 278877 sequences.