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A075352
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Group the natural numbers so that the product of the terms of the n-th group is just >= n!: (1), (2), (3, 4), (5, 6), (7, 8, 9), (10, 11, 12), (13, 14, 15, 16), (17, 18, 19, 20), (21, 22, 23, 24, 25), (26, 27, 28, 29, 30), ... Sequence gives product of numbers in each group.
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4
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%I #4 Dec 05 2013 19:55:37
%S 1,2,12,30,504,1320,43680,116280,6375600,17100720,1402410240,
%T 3776965920,8835488640,1022755734000,2478652606080,380634949094400,
%U 945378254620800,186127248627129600,470489622136934400,115590003914312928000
%N Group the natural numbers so that the product of the terms of the n-th group is just >= n!: (1), (2), (3, 4), (5, 6), (7, 8, 9), (10, 11, 12), (13, 14, 15, 16), (17, 18, 19, 20), (21, 22, 23, 24, 25), (26, 27, 28, 29, 30), ... Sequence gives product of numbers in each group.
%Y Cf. A075353, A075354, A075355, A075356.
%K nonn
%O 1,2
%A _Amarnath Murthy_, Sep 19 2002
%E More terms from _David Wasserman_, Jan 16 2005
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