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A159190 Main diagonal of array mentioned in A113941. 1
6, 9, 1247, 1891, 29539 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Main diagonal of array of k-gonal numbers which are also brilliant numbers.

LINKS

Table of n, a(n) for n=1..5.

FORMULA

A(k,n) = n-th brilliant number A078972 among (n+2)-gonal numbers.

EXAMPLE

The array begins:

=============================================

....|.n=1.|.n=2.|.n=3.|..n=4.|..n=5.|in OEIS.|

=============================================

k=3.|...6.|..10.|...15.|...21.|....253.|A113940

k=4.|...4.|...9.|...25.|...49.|....121.|A001248

k=5.|..35.|.247.|.1247.|..2501.|..4187.|A113941

k=6.|...6.|..15.|..703.|..1891.|..2701.|new

k=7.|.403.|.697.|.2059.|.25351.|.29539.|new

=============================================

CROSSREFS

Cf. A001248, A078972, A113940, A113941.

Sequence in context: A264375 A061110 A110460 * A236766 A004075 A202951

Adjacent sequences:  A159187 A159188 A159189 * A159191 A159192 A159193

KEYWORD

base,easy,nonn

AUTHOR

Jonathan Vos Post, Apr 05 2009

STATUS

approved

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Last modified December 17 05:10 EST 2018. Contains 318192 sequences. (Running on oeis4.)