A143666 - OEIS

A143666

(0, 1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13,..) becomes (0^1*2, 3^2*2, 5^2*3, 7^2*3, 3^2*2, 5^11*2, 2^3*13,..).

0, 18, 75, 147, 18, 97656250, 104, 384, 100, 867, 1048576, 96, 539, 1587, 486, 24576, 18, 6439811511626359453675214, 7533, 96, 2057, 156250, 16, 26011, 3188646, 9963, 56, 3698, 2662, 575, 8836, 4374, 64, 258280326, 434176, 24, 97656250, 6561, 10469

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..39.

EXAMPLE

0^1*2=0*2=0=a(1).

3^2*2=9*2=18=a(2).

5^2*3=25*3=75=a(3).

7^2*3=49*3=147=a(4).

3^2*2=9*2=18=a(5).

5^11*2=48828125*2=97656250=a(6).

2^3*13 =8*13=104=a(7).

2^7*3=128*3=384=a(8), etc.

CROSSREFS

Cf. A141269, A141270.

Sequence in context: A041628 A022145 A284659 * A139757 A285918 A262402

Adjacent sequences: A143663 A143664 A143665 * A143667 A143668 A143669

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Nov 01 2008

EXTENSIONS

Extended by R. J. Mathar, Nov 06 2008

STATUS

approved