A053243 Numbers n such that A053238(n) = 3.

154, 200, 259, 340, 375, 466, 554, 569, 673, 688, 779, 869, 884, 912, 989, 1095, 1232, 1276, 1394, 1409, 1493, 1513, 1630, 1645, 1719, 1805, 1819, 1923, 2027, 2042, 2117, 2153, 2162, 2208, 2240, 2345, 2480, 2542, 2662, 2706, 2850, 2871, 2886, 3003, 3078

Offset

1,1

Links

Table of n, a(n) for n=1..45.

Maple

with(numtheory): f := [seq( `if`((sigma(i) > sigma(i+1)), i, print( )), i=1..5000)];
seq( `if`(f[i+1] - f[i] = 3, i, print( )), i=1..1000);

Crossrefs

Cf. A000203, A053226, A053238, A053239, A053240, A053241, A053242, A053244, A053245.

Sequence in context: A049519 A214475 A327775 * A320708 A261377 A256024

Adjacent sequences: A053240 A053241 A053242 * A053244 A053245 A053246

Keyword

nonn

Author

Asher Auel, Jan 10 2000

Status

approved