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%I M3091 #24 Oct 24 2023 23:15:10
%S 3,22,85,254,644,1448,2967,5645,10109,17214,28093,44212,67430,100064,
%T 144959,205563,286007,391190,526869,699754,917608,1189352,1525175,
%U 1936649,2436849,3040478,3763997,4625760,5646154,6847744,8255423,9896567,11801195,14002134,16535189,19439318,22756812,26533480,30818839
%N Simple triangulations of a disk: column 4 of square array in A210664.
%D P. N. Rathie, A census of simple planar triangulations, J. Combin. Theory, B 16 (1974), 134-138.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H Andrew Howroyd, <a href="/A004305/b004305.txt">Table of n, a(n) for n = 0..1000</a>
%F a(n) = (n^6 + 15*n^5 + 103*n^4 + 405*n^3 + 976*n^2 + 1236*n + 432)/144.
%Y Cf. A210664.
%K nonn
%O 0,1
%A _N. J. A. Sloane_
%E Entry revised by _N. J. A. Sloane_, Mar 27 2012
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