A318652 -id:A318652 - cp's OEIS frontend

A318651 a(n) = A046644(n)/A318512(n).

1, 2, 1, 8, 1, 4, 1, 16, 1, 4, 1, 16, 1, 4, 1, 128, 1, 4, 1, 16, 1, 4, 1, 32, 1, 4, 1, 16, 1, 4, 1, 256, 1, 4, 1, 16, 1, 4, 1, 32, 1, 4, 1, 16, 1, 4, 1, 256, 1, 4, 1, 16, 1, 4, 1, 32, 1, 4, 1, 16, 1, 4, 1, 1024, 1, 4, 1, 16, 1, 4, 1, 64, 1, 4, 1, 16, 1, 4, 1, 256, 1, 4, 1, 16, 1, 4, 1, 32, 1, 4, 1, 16, 1, 4, 1, 512, 1, 4, 1, 16, 1, 4, 1, 32, 1

Offset: 1

Antti Karttunen, Aug 31 2018

nonn

Antti Karttunen, Table of n, a(n) for n = 1..16384

Cf. A046644, A318512, A318652.

A318651(n) = A046644(n)/A318512(n); \\ Needs also code from those two respective entries.

a(n) = A046644(n)/A318512(n).

a(n) = 2^A318652(n).

A318654 Positions of even terms in A318649.

Original entry on oeis.org

2, 4, 8, 16, 24, 32, 40, 56, 64, 88, 96, 104, 128, 136, 152, 160, 184, 192, 224, 232, 248, 256, 296, 320, 328, 344, 352, 376, 384, 416, 424, 448, 472, 488, 512, 536, 544, 568, 584, 608, 632, 640, 664, 704, 712, 736, 776, 808, 824, 832, 856, 872, 896, 904, 928, 992, 1016, 1024, 1048, 1088, 1096, 1112, 1184, 1192, 1208, 1216, 1256, 1304

Offset: 1

Antti Karttunen, Sep 01 2018

nonn

Positions of nonzero terms in A318655.

It appears that these are also the positions of even terms in A318511.

Antti Karttunen, Table of n, a(n) for n = 1..21123

Cf. A318511, A318512, A318649, A318652, A318655.

A318655 The 2-adic valuation of A318649, the numerators of "Dirichlet Square Root" of squares.

Original entry on oeis.org

0, 1, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0

Offset: 1

Antti Karttunen, Sep 01 2018

nonn

Probably also the 2-adic valuation of A318511.

Antti Karttunen, Table of n, a(n) for n = 1..65537

Cf. A318511, A318649, A318651, A318652, A318654 (the positions of nonzero terms).

A318655(n) = valuation(A318649(n),2); \\ Needs also code from A318649.

a(n) = A007814(A318649(n)).

It seems that for all n >= 1, a(n) <= A007814(A064549(n)) <= A007814(A000290(n)).

cp's OEIS Frontend

A318651 a(n) = A046644(n)/A318512(n).

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A318654 Positions of even terms in A318649.

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A318655 The 2-adic valuation of A318649, the numerators of "Dirichlet Square Root" of squares.

Views

Author

Keywords

Comments

Links

Crossrefs

Programs

PARI

Formula