A373853 Row sums of A373557.

2, 3, 4, 7, 5, 8, 9, 6, 9, 10, 11, 15, 7, 10, 11, 12, 16, 13, 17, 18, 8, 11, 12, 13, 17, 14, 18, 19, 15, 19, 20, 21, 26, 9, 12, 13, 14, 18, 15, 19, 20, 16, 20, 21, 22, 27, 17, 21, 22, 23, 28, 24, 29, 30, 10, 13, 14, 15, 19, 16, 20, 21, 17, 21, 22, 23, 28, 18, 22

Offset

1,1

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Formula

Conjecture: a(n) = A373346(n) + A007895(n).

Mathematica

Join[{2}, Map[Total[PositionIndex[Reverse[IntegerDigits[#, 2]]][1]] &, Select[Range[4, 1000, 4], DigitCount[#, 2, 1] < IntegerExponent[#, 2] + 1 &]]]

Crossrefs

Cf. A007895, A373346, A373557, A373854.

Sequence in context: A056535 A026237 A308301 * A357578 A125150 A265901

Adjacent sequences: A373850 A373851 A373852 * A373854 A373855 A373856

Keyword

nonn,easy,base

Author

Paolo Xausa, Jun 19 2024

Status

approved