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A100783 Leading diagonal of A100781. 4
1, 4, 15, 20, 55, 42, 105, 88, 207, 140, 297, 228, 403, 280, 615, 416, 697, 522, 893, 680, 1281, 726, 1357, 1056, 1725, 1040, 2133, 1372, 2117, 1590, 2449, 1920, 3267, 1802, 3535, 2412, 3515, 2280, 4641, 3120, 4387, 3234, 4687, 3564, 6525, 3358, 5687 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..47.

CROSSREFS

Cf. A100781, A100782, A100784, A100785.

Sequence in context: A212921 A225562 A301707 * A170850 A297711 A055465

Adjacent sequences:  A100780 A100781 A100782 * A100784 A100785 A100786

KEYWORD

easy,nonn

AUTHOR

Amarnath Murthy, Nov 30 2004

EXTENSIONS

Extended by Ray Chandler, Dec 10 2004

STATUS

approved

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Last modified February 25 10:59 EST 2020. Contains 332231 sequences. (Running on oeis4.)