A318894 Positions of terms > 1 in A205007, or equally, where A205006(n) != n.

1, 6, 10, 28, 36, 66, 78, 120, 136, 190, 276, 406, 496, 528, 666, 820, 946, 1128, 1378, 1770, 1830, 2016, 2080, 2278, 2556, 2628, 3160, 3486, 3828, 3916, 4656, 5050, 5356, 5778, 5886, 6328, 8128, 8256, 8646, 9316, 9730, 11026, 11476, 12246, 13366, 14028, 14878, 15576, 16110, 16290, 16836, 17578, 18336, 18528, 19306, 19900, 22366

Offset

1,2

Comments

It seems that A205007(a(n)) = 2 and moreover, apart from the initial 1, the sequence seems to be a subsequence of even triangular numbers, A014494.

Links

Table of n, a(n) for n=1..57.

Crossrefs

Cf. A014494, A205006, A205007.

Sequence in context: A295185 A225845 A014494 * A129545 A097578 A300098

Adjacent sequences: A318891 A318892 A318893 * A318895 A318896 A318897

Keyword

nonn

Author

Antti Karttunen, Sep 28 2018

Status

approved