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A113938 Numbers which are powerful(1) (A001694) and triangular at the same time. 1
1, 36, 1225, 29403, 41616, 1413721, 48024900, 74024028, 1631432881, 27665282700, 55420693056, 1024060098375, 1665678432600, 1882672131025, 63955431761796, 194838725161125, 2172602007770041, 26030209161894003, 73804512832419600 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

LINKS

Donovan Johnson, Table of n, a(n) for n = 1..47 (terms < 10^37)

EXAMPLE

29403=T(242) and 29403=3^5*11^2.

CROSSREFS

Cf. A001694, A000217.

Sequence in context: A103278 A004294 A075760 * A001110 A064196 A060786

Adjacent sequences:  A113935 A113936 A113937 * A113939 A113940 A113941

KEYWORD

nonn

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006

EXTENSIONS

a(12)-a(19) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Dec 07 2008

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Last modified February 17 04:26 EST 2012. Contains 205978 sequences.