A255550 - OEIS

A255550

Main diagonal of array A255551.

2, 5, 39, 91, 199, 315, 567, 829, 1227, 1513, 1953, 2569, 3277, 3769, 5119, 5925, 6607, 7539, 8319, 9375, 11007, 12511, 14103, 15801, 17593, 19165, 22213, 23617, 25467, 26967, 29347, 32733, 35809, 38085, 40953, 42915, 49093, 51787, 54055, 57459, 60409, 64057, 68433, 71637, 76299, 79719, 82545, 86133, 94921, 98037, 102745

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OFFSET

1,1

COMMENTS

Equally, 2 followed by the first subdiagonal of A255543.

LINKS

Table of n, a(n) for n=1..51.

FORMULA

a(n) = A255551(n,n).

a(1) = 2; for n > 1: a(n) = A255543(n,n-1).

Other identities.

For all n >= 1, a(n) = A255553(A083141(n)).