A363395 -id:A363395 - cp's OEIS frontend

A363402 a(n) = n * (4^n - 2^n) / Clausen(n, 0).

0, 2, 12, 56, 480, 992, 4032, 16256, 261120, 784896, 1047552, 4192256, 33546240, 67100672, 268419072, 1073709056, 34359214080, 17179738112, 206157643776, 274877382656, 2199021158400, 4398044413952, 17592181850112, 70368735789056, 1125899839733760, 5629499366440960

Offset: 0

Peter Luschny, Jun 08 2023

nonn

Cf. A160014, A363403, A363395.

# Using function 'Clausen' from A160014.
a := n -> n * (4^n - 2^n) / Clausen(n, 0):
seq(a(n), n = 0..25);

a(n) = n * A020522(n) / A160014(n, 0).

A363403 a(n) = (4^n - 2^n) / Clausen(n, 1).

Original entry on oeis.org

0, 1, 2, 28, 8, 496, 96, 8128, 2176, 130816, 15872, 2096128, 6144, 33550336, 44736512, 536854528, 8421376, 8589869056, 86114304, 137438691328, 3331850240, 2199022206976, 127479578624, 35184367894528, 103104380928, 562949936644096, 750599926710272, 9007199187632128

Offset: 0

Peter Luschny, Jun 08 2023

nonn

Cf. A160014, A363402, A363395.

# Using function 'Clausen' from A160014.
a := n -> (4^n - 2^n) / Clausen(n, 1):
seq(a(n), n = 0..25);

a(n) = A020522(n) / A160014(n, 1).

cp's OEIS Frontend

A363402 a(n) = n * (4^n - 2^n) / Clausen(n, 0).

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