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A082269
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Number of terms in row n of A082268.
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2
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1, 1, 0, 5, 15, 0, 55, 85, 0, 325, 1023, 0, 3786, 4678, 0, 21809
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,4
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MAPLE
| A082269 := proc(n) local prts, alln, p, i, ncand, n10 ; if n = 1 then RETURN(1) ; fi ; alln := {} ; prts := combinat[partition](n) ; for p from 1 to nops(prts) do n10 := combinat[permute](op(p, prts)) ; for i from 1 to nops(n10) do ncand := op(i, n10) ; ncand := add(op(j, ncand)*10^(j-1), j=1..nops(ncand) ) ; if gcd(ncand, n) = 1 and ncand <> n then alln := alln union {ncand} ; fi ; od ; od ; nops(alln) ; end: seq(A082269(n), n=1..16) ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 15 2007
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CROSSREFS
| Cf. A082268.
Sequence in context: A128946 A156219 A000331 * A107776 A161202 A154353
Adjacent sequences: A082266 A082267 A082268 * A082270 A082271 A082272
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KEYWORD
| base,more,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 13 2003
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 15 2007
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