cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A374927 a(n) = A135318(n)^2.

Original entry on oeis.org

1, 1, 1, 4, 9, 16, 25, 64, 121, 256, 441, 1024, 1849, 4096, 7225, 16384, 29241, 65536, 116281, 262144, 466489, 1048576, 1863225, 4194304, 7458361, 16777216, 29822521, 67108864, 119311929, 268435456, 477204025, 1073741824, 1908903481, 4294967296, 7635439161
Offset: 0

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Author

Paul Curtz, Jul 24 2024

Keywords

Comments

A374098 terms swapped by pairs.

Links

Crossrefs

Cf. A000302, A112387, A135318, A139818, A374098.

Formula

a(2*n) = A139818(n+1).
a(2*n+1) = 4^n = A000302(n).
a(n) = 3*a(n-2) +6*a(n-4) -8*a(n-6).
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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