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A106553 Semiprime + (largest integer obtained by concatenating its two divisors). 0
26, 38, 41, 62, 86, 65, 94, 233, 80, 239, 344, 251, 110, 257, 352, 278, 128, 368, 566, 376 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

First semiprime is 4; 4 is 2*2; 26=4+22.

Second semiprime is 6; 6 is 2*3 (23) or 3*2 (32); 38=6+32.

...

Eighth semiprime is 22; 22 is 2*11 (211) or 11*2 (112); 233=22+211.

CROSSREFS

Sequence in context: A034106 A171745 A106551 * A045092 A178662 A039324

Adjacent sequences:  A106550 A106551 A106552 * A106554 A106555 A106556

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini (eric.angelini(AT)kntv.be), May 09 2005

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Last modified February 14 22:58 EST 2012. Contains 205685 sequences.