A117002 a(n) = sigma(n) + 3*A079667(n).

1, 6, 10, 16, 18, 30, 26, 42, 37, 54, 42, 76, 50, 78, 72, 94, 66, 120, 74, 126, 104, 126, 90, 180, 103, 150, 136, 182, 114, 222, 122, 210, 168, 198, 156, 286, 146, 222, 200, 288, 162, 312, 170, 294, 258, 270, 186, 400, 201, 324, 264, 350, 210, 408, 252, 396, 296, 342, 234

Offset

1,2

References

H. J. S. Smith, Report on the Theory of Numbers, reprinted in Vol. 1 of his Collected Math. Papers, Chelsea, NY, 1979, see p. 322.

Links

Table of n, a(n) for n=1..59.

Crossrefs

Cf. A000203, A079667.

Sequence in context: A315292 A315293 A315294 * A315295 A315296 A315297

Adjacent sequences: A116999 A117000 A117001 * A117003 A117004 A117005

Keyword

nonn

Author

N. J. A. Sloane, Apr 15 2006

Status

approved